The Baby Sitters Club/Characters

Kristy Thomas

Full name Kristin Amanda Thomas. Founded the club in the first book Kristy's Great Idea, and became the President, renowned for having an endless stream of "great ideas" (including the Kid-Kits, and many one-off events such as the Mother's Day Surprise, the various day camps they ran, and so on). Her father ran out on the family when she was very young, and in Kristy's Big Day, her mother got remarried to "real live millionaire", Watson Brewer. Tomboyish and sporty, Kristy founded a kid's softball team for many of their sitting charges in Kristy and the Walking Disaster. In later books, she had a bit of a romance with the coach of the Krushers' rival team, Bart of Bart's Bashers.

• Academic Athlete: She has the management skills to create the club and be its president. Her sport is baseball and she even starts a kids' softball team. She's also a good student, as noted down in Kristy's Big Day, it's noted that she consistently earns straight As.
• Affectionate Nickname: "Kristy." Her real name is Kristin.
• A-Cup Angst: Kristy is the only eighth grade BSC member to not wear a bra and sometimes feels bad about it.
• Brainy Brunette: She is a brown haired girl, and is a very intelligent girl.
• Bratty Teenage Daughter: She has shades of this early in the series with her relationship with her stepfather, Watson. She insults him, refuses to eat food he cooks, and is generally unpleasant when he's around. However, she eventually learns to warm up to him (with the help of her step-siblings, Karen and Andrew) and later admits that she loves him a lot.
• Brutal Honesty: Kristy uses this quite often, which causes disagreements between her and other club members at times.
• Control Freak: On the one hand, Kristy's organization and strong personality allow the club to run smoothly and let the girls accomplish many things that pre-teen girls would often find difficult. On the other hand, she can sometimes run too tight a ship — she has a special glare for members who show up one minute late to a club meeting!
• Cool Big Sis: Is seen this way by her stepsister Karen.
• Daddy's Girl: She used to be this to her dad, but she soon realizes that she's also "Stepdaddy's Girl" when she learns to warm up to Watson.
• Death Glare: Kristy's "Look" tends to quiet other members.
• Disappeared Dad: Her father, Patrick Thomas, abandoned his wife and four children and almost never calls or writes.
• Fan Nickname: K Ron.
• Girl Next Door: To Mary Anne.
• Hot-Blooded: Often loud, stubborn, and impulsive, with many power tendencies.
• I Have Brothers: Of course she does! Four of them. (Including her stepbrother, Andrew.)
• I'm Not Pretty: She sometimes thinks of herself as plain compared to most of the other members.
• Jerkass Has a Point: Even if she can be bossy and rude at times, there are many times when she means well and speaks the truth about certain things as the president of the club.
• Jerk with a Heart of Gold: At times, Kristy can be the most negative out of all the other members because of her stubborn, impulsive, arrogant, and bossy Control Freak attitude, but she truly loves children and cares deeply about her friends and family.
• Kendo Team Captain: Of the Krushers.
• The Leader: She's the president of the whole club and often wants others to be aware of it.
• Limited Wardrobe: Her uniform, which she wears all the time, consists of a turtleneck under a sweater, jean, sneakers, and at the meetings a director's visor.
• Massive Numbered Siblings: Kristy has four brothers (David, Charlie, and Sam Thomas), two step-siblings (Andrew and Karen Brewer), and a half-sister (Emily Brewer).
• Middle Child Syndrome: She's too young to hang out with her high school brothers (Sam and Charlie), and she's too old to play to play with the younger kids of her family (David, Karen, Andrew, and Emily). Sam and Charlie still invite her to do sports with them, and she occasionally joins the kids in their games. Plus, she's the only one of her siblings that goes to middle school.
• Odd Friendship: With Shannon Kilbourne. The reason why Kristy disliked her before is because she viewed her as a rich and snobby fashionista, but the two of them eventually become friends after Shannon bonds with Kristy over the loss of her dog.
• One of the Boys: She's the only girl out of her family, but she eventually gets a stepsister (Karen) and a half-sister (Emily) when her mother remarries.
• Only Known by Their Nickname: Her real name is Kristin, but in most books, she is identified only as "Kristy".
• Outdoorsy Gal: She's an enthusiastic baseball player.
• Passionate Sports Girl: Kristy loves sports, with her favorite being baseball.
• Pink Means Feminine: Downplayed. Even though Kristy is a tomboy, she actually likes the color pink, and she frequently wears pink clothes throughout the series.
• Red Oni, Blue Oni: The brash and energetic Red to Mary Anne's shy and sensitive Blue.
• Tomboy: A baseball player, a girl who wears more turtleneck shirts, caps, jeans, and sneakers, and who grew up with her brothers.
• Tomboy and Girly Girl: The Tomboy (along with Dawn) to Mary Anne's Girly Girl.
• Tomboyish Ponytail: Tends to keep her hair like this most of the time.
• Tomboy with a Girly Streak: Despite being the most tomboyish of the club members (due to her love of baseball, wearing jeans and sneakers, and balking at fashion), she also enjoys babysitting (which is considered feminine) and proclaimed beauty contests, likes the color pink (unlike Mary Anne) and often wears pink clothes throughout the series and has no problem with it. Also, she feels delighted about getting dressed up and being a bridesmaid at her mother's wedding.
• Two First Names: Kristy Thomas.

Claudia Lynn Kishi

Vice-president of the club, by virtue of being the only one with her own private phone line. Additionally, her junk food habit meant that she always had snacks stashed in her bedroom that the other girls could eat during their meetings. Artistic, flighty, and hopeless at school, Claudia defied the "model minority" stereotype to an extent. Her family was very conservative, and she often felt as though she was being compared unfavorably to her genius older sister, Janine. She had many casual boyfriends, but few serious ones. In Claudia Kishi, Middle School Dropout, she was pushed back to the seventh grade, only to be returned to the eighth grade with her friends in Claudia Makes Up Her Mind.

• Affectionate Nickname: "My Claudia" by her grandmother, Mimi.
  • "Claude" by her friends.
• Annoying Younger Sibling: She's this to her older sister, Janine, whom she clashes with in the earlier books.
• Asian Airhead: Very mildly in the earlier books, but she struggles more with her knowledge in school subjects in later books to the point where she gets held back in seventh grade in order to improve.
• Big Eater: She is a model-thin junk food addict.
• Book Dumb: She struggles a lot in school and has a strong disliking for math, and she's not good at spelling. But she does enjoy reading Nancy Drew books (which aren't improved by her parents) and novels. In fact, she states that reading Nancy Drew books teach critical thinking and problem solving.
• Bratty Teenage Daughter: The most stereotypical example. Besides art, her main interests include boys and clothes, she dislikes studying, whines every time she has to do homework, thinks her parents don't understand her, hides things in her bedroom her parents don't approve of, and argues with her older sister, Janine, since she's jealous of her.
• Character Name and the Noun Phrase: Most of Claudia's books are titled "Claudia and the (Noun Phrase)." The first one to avert this is Keep Out, Claudia!, her ninth birthday title.
• Deadpan Snarker: Or as close as the BSC ever gets. All of the members can be snarky at times, but Claudia is the snarkiest of them all.

Stacey: [The local department store] lost their Santa Claus. Claudia: Disappeared between men's shoes and kitchenware, huh? I know that area. It's like the Bermuda Triangle.

• The Fashionista: Along with Stacey. Claudia is very creative and enjoys fashion and art. She makes a lot of her own outfits and jewelry.
• Foolish Sibling, Responsible Sibling: The Foolish Sibling to Janine's Responsible Sibling.
• Girly Girl with a Tomboy Streak: Claudia enjoys art, fashion, and romance, but she's also a Big Eater, and she reads mystery books like Nancy Drew. She is also stated to be a skier.
• Informed Ability: Her artistic talent, which due to the medium, was rarely shown. The movie allowed her to show off her talents just a bit more, including in the intro where she's seen making a wind chime out of old silverware and a hanger.
• In-Series Nickname: She's often called "Claud" for short.
• Jerk with a Heart of Gold: Claudia is often the most snarky out of the other club members, along with being bratty and competitive (mostly towards her sister Janine), but she also has an easygoing side of her, she loves children, she cares about her family and the other club members, and she even tries to get along more with Janine.
• Popular Is Dumb: Like Stacey, she's quite popular at school but struggles with certain subjects.
• Self-Deprecation: She's often insecure about her book smarts, especially in comparison with her sister, that she even mocks herself about it.
• Shout-Out: Her favorite mystery book series is Nancy Drew.
• Sweet Tooth: To the point where she hides junk food in her room because it's pretty forbidden.
• Token Minority: Claudia is the only Asian member of the club. (She's Japanese.)
• Took a Level In Kindness: In the first books, Claudia clashes a lot with Janine, and she looks down on Kristy and Mary Anne and views them as "childish" and not as popular as her and Stacey, but she eventually becomes nicer later on, gets along more with Janine, and gets along more with Kristy and Mary Anne.
• The Unfavourite: She sees herself as this compared to her Teen Genius older sister, Janine, while Janine feels the same compared to Claudia, who is pretty and popular at school.
• Unlimited Wardrobe: Incredibly so!

Mary Anne Spier

The secretary of the club, as she was extremely organized and had very neat handwriting. Was raised by her father, her mother having passed away when she was very young. In early books, her father Richard was very strict, but he gradually loosened up as time passed. She was Kristy's next-door neighbor before Kristy's move, and throughout most of the books is her Shrinking Violet best friend. She was the first of the club members to have a steady boyfriend, club associate officer Logan Bruno, who she meets in Logan Likes Mary Anne. Becomes step-sisters with Dawn in Mary Anne and the Great Romance.

• Author Avatar: Ann M Martin identified her as such.
• Beware the Nice Ones: Mary Anne gets extremely vindictive when pushed too far.
• Brainy Brunette: She has brown hair and is a good student at school.
• Daddy's Girl: Mary Anne wasn't happy about this at first, since her father can be overprotective of her, but she soon learns to stand up to him, and they become more close as the series progresses.
• Expository Hairstyle Change: Her father makes her wear her hair in braided pigtails until the end of the fourth book, when Mary Anne stands up to him as well as proves she can be the adult in a dangerous situation instead of panicking. She lets her hair down in celebration.
  • Important Haircut: In the later books she starts taking on a more mature appearance with a bob Haircut and pierced ears. Her friends are surprisingly offended by this.
• Extreme Doormat: She can sometimes be this, but she still has her moments of speaking up.
• Girl Next Door: With Kristy.
• Girlish Pigtails: Her braids, meant to symbolize her father trying to keep her an innocent little girl for way too long. She finally gets rid of them in her first spotlight book.
• Girly Girl with a Tomboy Streak: Mary Anne is a shy and sensitive young girl, adores kittens, dislikes sports, cares about her clothes, and has hobbies of sewing and knitting. But unlike Kristy (who is a tomboy but actually likes the color pink), Mary Anne is not a fan of pink and dislikes her childish "little girl" pink bedroom until she finally stands up to her father and changes the style of her room.
• I Can't Believe a Guy Like You Would Notice Me: Towards her boyfriend, Logan, who resembles her favorite movie star.
• Jerkass Ball: Mary Anne is mostly a very sweet, humble, and shy girl, but her vindictive streak can get the best of her at times and cause her to be harsh, but she eventually learns from her mistakes and apologizes to whoever she hurts.
• Missing Mom: Her mother passed away when she was very little, and it's implied that it was from cancer.
• Naive Everygirl: She's very insecure and vulnerable, can barely talk to strangers, and is surprised when her crush, Logan, likes her back.
• Official Couple: With Logan.
• Overprotective Dad: Mary Anne's father is totally this...until she tells him off.
• The Quiet One: Out of all the other club members.
• Red Oni, Blue Oni: The shy and sensitive Blue to Kristy's brash and energetic Red.
• Shrinking Violet: She is the most shy and sensitive of the club members.
• Tender Tears: One of her defining traits.
• Textile Work Is Feminine: Sewing and knitting is her biggest hobby.
• Tomboy and Girly Girl: The Girly Girl (along with Shannon) to Kristy and Dawn's Tomboys.

Stacey McGill

Full name Anastasia Elizabeth McGill. Originally from New York City, she moved to Stoneybrook when her father was transferred. Frequently described as chic, sophisticated and "boy-crazy", Stacey, like Claudia, had many boyfriends but few long-lasting relationships. She was the treasurer of the club, as she had a gift for mathematics. She moved back to New York in Goodbye, Stacey, Goodbye when her father was transferred back, but returned to Stoneybrook in Welcome Back, Stacey when her parents divorced, and her mother decided that she preferred living in the small-town environment. Frequent attention is paid to the fact that she is diabetic, and she is hospitalized multiple times throughout the series. She quit the club to spend more time with other friends in Stacey vs. the BSC, but she rejoins in Stacey and the Bad Girls.

• Affectionate Nickname: "Stacey" by her friends. Little do they know, her real name is Anastasia.
• Big Applesauce: Stacey (and the writer) is constantly narrating about how awesome New York is and that she's from there. The other members make a big deal out of Stacey being from the city as well.
• Big Sister Mentor: To Charlotte, her favorite sitting charge. They're both only children who experience social isolation, because of Stacey's illness, and Charlotte being ahead of her classmates.
• Broken Ace: She's pretty, smart, popular, good at fashion advice, and is a good student who excels at math. (Unlike Claudia.) But she also struggles with diabetes and has a Dark and Troubled Past, as she was ostracized by all her old "friends" in New York. She often tries to hide her "broken" part, and she always tries to be positive most of the time.
• Cool Big Sis: To her favorite child to babysit, Charlotte.
• Diva: Incredibly so, and not just because of how rich she is and her old life in New York.
• Do Not Call Me Paul: Stacey does not like being called "Anastasia".
• Embarrassing First Name: Stacey doesn't tell anyone her real name is Anastasia for a long time.
• Embarrassing Nickname: Her father calls her "Boontsie".
• Everyone Loves Blondes: Blonde, pretty, smart, popular at school, and very fashionable.
• The Fashionista: Along with Claudia. Stacey is glamorous and trendy, and she has a hobby for shopping.
• Girly Girl with a Tomboy Streak: Stacey is the most feminine out of all the other club members. She is very fashionable, boy-crazy, romantic, trendy, and glamorous, and has hobbies of shopping, reading celebrity magazines, and living a typical New York life. On the other hand, her favorite color is blue, and she has no fear in watching horror movies.
• Good with Numbers: She is a math whiz.
• Hair of Gold, Heart of Gold: She has blonde hair and is very bubbly, positive, and perky.
• Hormone-Addled Teenager: She is the most boy-crazy out of all the other members and has had many crushes and boyfriends, including an older teenage lifeguard and a student teacher.
• Informed Attribute: She's said to have permed hair, but certain book covers show her with a shorter cut, especially in "Claudia and Mean Janine."
• Jerkass Ball: She is usually a perky and friendly girl, but she can sometimes have diva moments and can make selfish choices because of her stuck-up streak.
• Only Known by Their Nickname: Her real name is Anastasia, but in most books, she is identified as "Stacey."
• Only Six Faces: She and Dawn are the only blondes of the club and look slightly similar in some book covers.
• Overprotective Dad: After she is diagnosed with diabetes.
• Plucky Girl: Gutsy, outspoken, and perky.
• Potty Failure: Before being diagnosed with diabetes, Stacey wet herself at a sleepover, embarrassing herself in front of her friends.
• Shout-Out: She watches Mary Poppins at least once a week.
• Spoiled Sweet: She is the most privileged of the club members, but she enjoys spending time with her friends.
• Smitten Teenage Girl: Regularly crushes on other guys and has crushed two older guys- a lifeguard and a student teacher.
• When You Coming Home, Dad?: Stacey's dad is a workaholic.

Dawn Read Schafer

Introduced in Mary Anne Saves the Day, Dawn is the alternate officer of the club. Originally from California, Dawn moves to her mother's hometown of Stoneybrook when her parents divorce. She becomes fast friends with Mary Anne, which makes Kristy extremely jealous. She is identified throughout the series as being a very casual, individual health-food nut, though this was retooled in later books to place the emphasis more on environmental activism and strict vegetarianism, rather than simply being into health food. Her mother and Mary Anne's father marry in Mary Anne and the Great Romance. Later in the series, she grows increasingly homesick, and moves back to California to live with her dad and younger brother in Dawn's Big Move.

• Bratty Teenage Daughter: She often has jealousy issues and lets them get the best of her, including when her father spends time with Mary Anne.
• Characterization Marches On: In early books, Dawn is into health food and "prefers" to not eat red meat (and doesn't even feel sorry for cows), but still eats chicken and fish. In later books, she is a strict vegetarian who rants about the evils of killing animals for meat.
• Clingy Jealous Girl: Shows a dose of this in Mary Anne's Makeover, in which she admits that she's jealous of all the time Mary Anne's been spending with her father and that it makes her miss her own terribly. Dawn comes off as being resentful of Mary Anne for having her father around, apparently forgetting that he is Mary Anne's only living parent.
• Cool Big Sis: To her younger brother Jeff, who looks up to her.
• Daddy's Girl: She's very close with her father and misses him when she is away from him. (Since he lives in California).
• Embarrassing Middle Name: Read.
• Embarrassing Nickname: "Sunshine". In part embarrassing, because it's also her California best friend's full first name.
• Fifth Ranger: In "Mary Anne Saves the Day," Dawn joins Mary Anne, Kristy, Claudia, and Stacey in the club and becomes the fifth member.
• Granola Girl: She loves the beach and cherishes California life, is a health food nut, an environmentalist, and a strong opponent of guns and violence.
• Hair of Gold, Heart of Gold: She is an idealistic long-blonde haired girl who cares about the environment.
• Health Food Fanatic: And how.
• Informed Attribute: Dawn is usually described as being the "individual" of the group, but at times she changes herself to attract boys. For instance, in Dawn and the Older Boy, she cuts her hair so a boy will like it better.
• Jerk with a Heart of Gold: Dawn can sometimes be judgmental, envious, and has a tendency to avoid other people's wants and needs, but she is mostly a good girl who cares about her friends, especially her stepsister, Mary Anne, and she wants to show others how to care for the environment.
• New Transfer Student: She comes to Stoneybrook Middle School in the middle of seventh grade and befriends Mary Anne while she is arguing with the others in the BSC.
• Only Six Faces: She and Stacey are the only blondes of the club and look slightly similar in book covers.
• Soapbox Sadie: Infamously played straight in Dawn Saves The Planet. By the end of the story, it ends up blowing up in her face.
  • It's All About Me: Bordering on A God Am I, in this book.
• Tomboy and Girly Girl: The Tomboy (along with Kristy) to Mary Anne's Girly Girl.
• Tomboy with a Girly Streak: She is an Outdoorsy Gal who dresses casually and enjoys ghost stories, but she gives herself a Girliness Upgrade in order to impress a boy she crushes on.
• Took a Level in Jerkass: Downplayed. She enters the series as easygoing and laid back, but she soon becomes more envious and judgmental, but she is still a good member of the club.

Mallory Pike

First introduced in The Truth About Stacey as a ten year old client, she is invited to join the club at age eleven in Hello, Mallory!, after Stacey moves back to New York. The oldest of eight kids, Mallory is described as very responsible with children. Despite this, at first the club is hesitant to let her join because of her age, making her do a number of difficult tests before finally relenting and letting her and her best friend Jessi join the club. As she is the only one in her family with red hair, glasses and braces, Mallory often feels unattractive and an ongoing plot arc of hers was trying to convince her parents to let her spice up her look with contacts, pierced ears, and a new wardrobe. She is forced to leave the club for a while when she comes down with mononucleosis in Get Well Soon, Mallory. She rejoins the club in Kristy and the Copycat, but then leaves for good in The All-New Mallory Pike when she leaves for boarding school.

• Affectionate Nickname: "Mal" by her friends.
• All Girls Like Ponies: She is a bookworm who enjoys reading horse stories.
• Ascended Extra: She starts off as a babysitting charge, because her family are frequent clients of the club.
• Ascended Fangirl: She's always admired the girls and was excited when they asked her to join the club.
• Bespectacled Cutie: She wears glasses and has a sweet and humble demeanor.
• Bookworm: She loves to read and write stories.
• Butt Monkey: A list of the tragedies that befall her can be found here.
• Cool Big Sis: She's this to her seven siblings.
• Cute Clumsy Girl: She is the most clumsy and uncoordinated of the members.
• Fiery Redhead: Averted. She has red hair and is very sweet and humble.
• Friendless Background: She had no friends before meeting Jessi and joining the BSC.
• Girly Girl with a Tomboy Streak: Mallory hate sports, wishes to be prettier, and acts like a motherly figure to her siblings, but she also adores horses and sometimes enjoys horseback riding. She also enjoys archery at times.
• I Am Not Pretty: How Mallory sees herself.
• Massive Numbered Siblings: She has seven siblings!
• Meaningful Name: Mallory is Norman French for "unlucky".
• Most Writers Are Writers: She is an aspiring writer.
• Naive Everygirl: She sees herself as not beautiful, and she feels like her parents treat her like a child.
• Off to Boarding School: In The All-New Mallory Pike. In this case, however, going was her decision.
• Only Sane Woman: Along with Jessi, who stays out of arguments between other club members.
• Red Oni, Blue Oni: The insecure Blue to Jessi's outspoken Red.
• Self-Deprecation: She has insecurities about her looks and her clumsiness.
• Shrinking Violet: On a lesser extent than Mary Anne, but Mallory can be shy and unconfident of herself at times.
• Sixth Ranger: She is the sixth member to join the club.
• Straw Fan: In Mallory Pike, #1 Fan, she comes across like this.
• Those Two Girls: With Jessi.

Jessica Davis "Jessi" Ramsey

Jessi moved to Stoneybrook from Oakely, New Jersey at the beginning of the sixth grade, coincidentally into Stacey's old house. She has an eight-year-old sister called Rebecca or "Becca," and a baby brother named John Phillip Ramsey Jr., better known as "Squirt."

Jessi is incredibly talented at ballet, and when she grows up she wants to become a professional ballet dancer. She has been doing ballet since she was four, and was admitted into a special ballet school in Stamford. She has had the lead role in several productions at that school. In book #115, Jessi's Big Break, she had an opportunity to join the Dance New York programme and study ballet under David Brailsford for 3 1/2 weeks. Toward the end of the story, she was also given a chance to join the Dance New York programme full time, but she decided to accept it when she was a little older.

• The Ace: At ballet dancing.
• Affectionate Nickname: "Jessi" by her friends. Her real name is Jessica.
• All Girls Like Ponies: Not as much as Mallory, but Jessi also reads horse stories at times.
• Black Best Friend: To Mallory and the other girls.
• Bookworm: Much like Mallory.
• Cool Big Sis: To her little sister, Becca.
• Divergent Character Evolution: Essentially Mallory 2.0 before later books explored her character.
• Friendless Background: Of the Newcomer variety. Doesn't help that many people are racist towards her and her family.
• Girly Girl with a Tomboy Streak: She is an aspiring ballet dancer, and she enjoys reading and art, but she also enjoys swimming.
• Naive Newcomer: She is shocked about by the blatant racism she and her family receive when they move to Stoneybrook and the meaness of her neighbors.
• New Transfer Student: Jessi was born in Oakley, New Jersey, but she moved to Stoneybrook when she was eleven.
• Only Known by Their Nickname: She's always addressed as Jessi throughout the series.
• Only Sane Woman: Along with Mallory, who stays out of arguments between other club members.
• Red Oni, Blue Oni: The outspoken Red to Mallory's insecure Blue.
• Sixth Ranger: She soon joins Mallory on joining the BSC.
• Those Two Girls: With Mallory.
• Token Black: As every single book will tell you, she is the only black member.

Abigail "Abby" Stevenson

The final Sixth Ranger, taking over after Dawn left and Demoted to Extra as soon as Friends Forever started up. Abby moved with her mom and twin sister, Anna, from Long Island to Kristy's neighborhood in part for her mom to distance herself from Abby's father's death. Abby is a big joker, a natural athlete, asthmatic and allergic to half the things in any given room.

• Affectionate Nickname: "Abby" by her friends. Her real name is Abigail.
• Alter Kocker: Abby's Grandpa Morris and Gram Elsie in Abby and the Mystery Baby. Less so in other appearances.
• Blithe Spirit: Greatly enlivens BSC meetings with her jokes and her refusal to take Kristy too seriously.
• Class Clown: She is the most humorous and easygoing of the club.
• Daddy's Girl: She and Anna were both close with their father.
• Disappeared Dad: Her father passed away from a car crash because of a drunk driver.
• Different As Night and Day: Abby and Anna are Polar Opposite Twins.
• Genki Girl: Just as outgoing and enthusiastic as Kristy, but more easygoing.
• Informed Judaism: She and her family are Jewish, and she and her twin sister have their bat mitzvah in one book.
• Innocently Insensitive: She is a very humorous and easygoing girl who tells jokes to cheer herself up over the loss of her father, but she doesn't always realize how her humor could affect those around her.
• New Transfer Student: Abby and her family moved to Stoneybrook when she was thirteen.
• Only Known by Their Nickname: She is called "Abby" throughout the series.
• Passionate Sports Girl: Just like Kristy. But while Kristy's passion is for baseball, Abby's is for soccer.
• Polar Opposite Twins: With her twin sister, Anna.
• Pungeon Master: She often makes corny jokes and puns.
• Quirky Curls: She has curly hair and a corny sense of humor.
• Red Oni, Blue Oni: Abby's Red (energetic and outgoing) and Anna's blue (gentle and ingoing).
• Shout-Out: She dresses as Alice from Alice in Wonderland in "Abby in Wonderland."
• Sixth Ranger: More like "Eighth Ranger," due to being the last member to join the club, replacing Dawn.
• Technician Versus Performer: According to Kristy, Abby is a natural athlete, while Kristy is a sportsperson.
• Tomboy and Girly Girl: The soccer player Tomboy to Anna's violin player Girly Girl.
• Tomboy with a Girly Streak: Abby is a sporty soccer player and a jokester, but she enjoys babysitting, and she doesn't mind getting dressed up and owns a few dresses.
• When You Coming Home, Dad?: Her mother is just like this, due to the loss of her husband and taking care of her two teen daughters (Abby and Anna).

Logan Bruno

Mary Anne's boyfriend and an associate club officer (a member who doesn't have to go to meetings). He moves to Louisville, Kentucky and is immediately smitten with the shy yet intelligent Mary Anne.

• Big Brother Mentor: To the club members sometimes.
• Big Man on Campus: Implied many times to be popular at school.
• Celebrity Resemblance: Mary Anne initially likes him because he looks like her favorite actor.
• Chick Magnet: In addition to Mary Anne, there's also Cokie and Grace. And he's stated to be attractive to other girls at school.
• Control Freak: Not always, but there are a few books that show him as this, which is why he and Mary Anne broke up for a while.
• Cool Big Bro: To any kid he babysits.
• Jerkass Ball: Despite his chill and caring attitude, there are a few books that portray him as pushy and controlling, which causes Mary Anne to break up with him for a while before getting back together with him. Although, they sadly break up for good in the Friends Forever series.
• Lovable Jock: His defining trait.
• Nice Guy: Kind, caring, chill, and protective.
• Official Couple: With Mary Anne.
• Off to Boarding School: He's almost sent away to his dad's old boarding school, but he and Mary Anne manage to talk his father out of it.
• Real Men Wear Pink: Enjoys babysitting, despite others assuming that it's a feminine activity.
• Sixth Ranger: Somewhat. He's not a full-time member of the club, just an associate.

Shannon Kilbourne

The second associate club officer and who goes from a rival to a friend to the BSC, especially Kristy.

• Ascended Extra: Unlike Logan, Shannon actually joins the others on trips at times.
• Bully Turned Buddy: To Kristy, and later on the other BSC members too.
• Character Development: She goes from a rich Alpha Bitch to a Spoiled Sweet member of the BSC.
• Embarrassing Nickname: "Shannie" by her mom.
• Extracurricular Enthusiast: An overachiever who attends a private school involved with many extracurricular activities.
• Hair of Gold, Heart of Gold: She becomes more sweet and friendly after the story of her first appearance.
• Heel Face Turn: She goes from Kristy's rival to her friend after bonding with her over the loss of her dog and apologizing for a prank war they had earlier before Kristy found out about the news.
• Jerk with a Heart of Gold: Shannon enters the series as snobby, arrogant, and envious of Kristy and the other BSC members for owning a business, to the point where she starts a prank war with Kristy. Although, she soon learns that Kristy is grieving over the loss of her dog and bonds with her over it, and also apologizes for the prank war, which shows that she still has a sweet and understanding side. From that time on, Shannon becomes more friendly and mature to the point where she befriends Kristy, joins the club as an associate member, and also befriends the other members.
• Lovable Alpha Bitch: Ends up becoming Kristy's friend after making up with her for a prank war.
• Odd Friendship: With Kristy. The reason why Shannon envied her before is because she and her friends had a responsible business, but she soon becomes an associate officer in that business.
• One Steve Limit: Averted. Kristy's brother names the family's new dog after the human Shannon.
• Sixth Ranger: Somewhat. Like Logan, she doesn't become a member who joins in for meetings.
• Tomboy and Girly Girl: The Girly Girl to Kristy's Tomboy.
• Took a Level In Kindness: She becomes a more decent person after her first appearance, and she becomes friends with the other members and develops a close friendship with Kristy. She also joins the club as an associate member and sometimes goes with the other girls for trips and vacations.
• We Named the Monkey "Jack": Shannon gives a puppy as a gift to Kristy's family following the death of her old dog, and they name the pup Shannon in her honor.