These are miscellaneous students from across various books during the series run. These students don't warrant their own page. They are either mentioned in passing or don't have a big role in a book.
Stoneybrook Middle School[]
Sixth Grade[]
- Ben Abbott: he auditions for the sixth grade follies and recites the Gettysburg Address in Jessi's Horrible Prank.
- Laura Aronsen: Auditions for the sixth grade follies and sings Maybe from Annie in Jessi's Horrible Prank.
- Jeff Atkinson: auditions for the sixth grade follies; he sings the theme song from Shining Time Station in Jessi's Horrible Prank.
- Craig Avazian: In Jessi's Short Takes class; imitates Renne Johnson in Jessi's Horrible Prank and mentioned in Don't Give Up, Mallory!.
- Sanjita Batts: Puerto Rican classmate of Jessi's in Jessi's Horrible Prank. She has a sister in the seventh grade. Sanjita gets stage fright.
- Ashley Bedell: Part of the sixth grade follies in Jessi's Horrible Prank. She gives up on the dance routine saying its too hard.
- Tom Block: On the sixth grade Follies finance committee with Jessi in Jessi's Horrible Prank.
- Jimmy Bouloukos: Sits in front of Jessi in her short takes computer programming class in Jessi's Horrible Prank, he's mentioned in Don't Give Up, Mallory!.
- Chris Brooks: He has Mr. De Young for gym class. He plays volleyball during gym with Mallory Pike He serves to her because he knows she'll miss the ball in Mallory Hates Boys (and Gym). He's on the SMS Baseball Team and mentioned in Don't Give Up, Mallory!.
- Liz Cohen: Auditions for the sixth grade follies; does the Vitamealavegamin routine from I love Lucy in Jessi's Horrible Prank. She's mentioned in Don't Give Up, Mallory!.
- Kristin Condos: In Mal and Jessi's gym class in Jessi's Gold Medal.
- Danni: Girl in Mal's class who barfed when she saw fake barf Benny Ott brought in in Hello, Mallory.
- Maria Fazio: In Jessi's short takes class in Jessi's Horrible Prank.
- Noah Fein: In Mr. De Young's gym class; plays volleyball with Mal and Jessi and rest of the girls' class in Mallory Hates Boys (and Gym).
- Helen Gallway: In Mal and Jessi's gym class; very athletic in Mallory Hates Boys (and Gym).
- Sarah Green: Gets so nervous about the Sixth Grade follies that she has to take a barf break in the girls' room in Jessi's Horrible Prank.
- Bobby Gustavson: In the Sixth Grade follies with Jessi; visits her house for rehearsal, plans Wayne's world type skit in Jessi's Horrible Prank. He's mentioned in Don't Give Up, Mallory!.
- Tom Harold: In Mr. De Young's gym class; plays volleyball with Mal and Jessi and rest of girls' gym class in Mallory Hates Boys (and Gym).
- Glen Johnson: In Mr. De Young's gym class; plays volleyball with Mal and Jessi and rest of girls' gym class in Mallory Hates Boys (and Gym).
- Renee Johnson: In Jessi's Short Takes class in Jessi's Horrible Prank.
- Robbie Mara: In Mr. De Young's gym class; plays volleyball with Mal and Jessi and rest of girls' gym class in Mallory Hates Boys (and Gym); teases Mal during volleyball. He's mentioned in Don't Give Up, Mallory!.
- Fiona McRae: Talented student in Claudia's class at the art center, whose sculpture of stag wins second-prize ribbon in Claudia and the New Girl.
- Justine Moss: In Jessi's Horrible Prank, quiet and studious, the shyest girl in Jessi's short takes class; even she takes part in the pranks. In the sixth grade follies with Jessi; visits her house for rehearsal, comes up with the Mr. Trout/Klingon skit.
- Mark O'Connell: In Jessi's short takes class in Jessi's Horrible Prank.
- Benny Ott: In Jessi and Mal's homeroom in Poor Mallory!. He is originally from Detroit, his dad sells car parts, mother is a secretary; Benny wants to become a great actor. Newest kid in class until Jessi arrives; a troublemaker; a true goon. He's mentioned in Don't Give Up, Mallory!.
- Randy Rademacher: In the Sixth Grade Follies with Jessi; visits her house for rehearsal; does an impression of Mr. Williams as Elvis. He's mentioned in Don't Give Up, Mallory!.
- John Rosen: In Jessi's short takes class in Jessi's Horrible Prank.
- Sally: Sits at the lunch table with Rachel Robinson in Hello, Mallory.
- Sean: Slim, short boy with red hair and freckles; writes to Claudia's personals regarding his parents' breakup. She gives him Dr. Reese's phone number; he goes to her and talks things out.
- Mara Semple: On the Sixth Grade Follies performance committee but goes to the mall instead of rehearsal at Jessi's house; her parents were cold to Ramseys when they first moved in in Jessi's Horrible Prank.
- Jamie Sperling: A girl, plays Ms. Flood in the Sixth Grade Follies.
- Laura Nelson
- Megan Armstrong: New, only mentioned in Don't Give Up, Mallory!; is ignored by the teacher in class discussions.
- Jen Corn: only mentioned in Don't Give Up, Mallory!; is ignored by the teacher in class discussions.
- Rebecca Mason: a student in Mallory's creative writing class in Mallory on Strike. She had turned in her book early and looked smug about it. Her story had a professional looking cover.
Seventh Grade[]
- Ron Belkis: Claudia thinks he's cute in Stacey's Ex-Best Friend.
- Davina: Sings song called "Stop Pickin on the President" at Leicester Lodge Talent show in Baby-sitters' Winter Vacation.
- Anne Kennedy: Girl whose Nicky Cash tickets were stolen by T-Jam and given to Logan in Logan Bruno, Boy Baby-sitter; a pretty red-haired girl, who is overjoyed when Logan gives the tickets back.
- Liza Shore: Big and athletic, with purple hair; writes personals ad to Claudia in Claudia and the Perfect Boy. Finds Nathan, a boy who is as fascinated by ancient Egypt as she is.
- Stephanie Boxer: Mentioned in Claudia and the Lighthouse Ghost. She has a crush on Alan Gray in Claudia Gets Her Guy.
- Loretta Jorgensen is a seventh grader who attends Stoneybrook Middle School and only appears in the book Claudia, Queen of the Seventh Grade. She and her friend Jennifer Kline gush about Mark Jaffe.
- Jennifer Kline is a seventh grader who attends Stoneybrook Middle School and only appears in the book Claudia, Queen of the Seventh Grade. She, along with her friend Loretta Jorgensen, gush about Mark Jaffe.
- Tonya Wright: Cheerleader, mentioned in Claudia and the Lighthouse Ghost
- Joanna Fried: Friend of Claudia's
- Jeannie Kim: friend of Claudia's
- Shira Epstein: friend of Claudia's
Eighth Grade[]
- Angela: Is in Mary Anne's Modern Living class, pretend married to Kevin, and loses their child-egg in Mary Anne + 2 Many Babies.
- Sue Archer: very cool girl in Dawn's science class. She's blonde and blue eyed - much to Stacey's distress in Dawn's Big Date. Robert pays lots of attention to her on the plane ride to Hawaii. She auditioned for Claudia's radio show in Claudia Kishi, Live From WSTO!.
- Corrine Baker: hangs out with the basketball team and a cheerleader, in Stacey and the Cheerleaders.
- Marty Bukowski: Star SMS basketball player. He goes steady with Sheila MacGregor. His nickname is "The Bukeman" in Stacey and the Cheerleaders.
- Jeff Cummings: Is in Mary Anne's English class in Mary Anne and the Memory Garden.
- Jo Deford is a eighth grade student who attends Stoneybrook Middle School. She is good friends with The Shillaber Twins.
- David Gabel: In Claudia's summer school class; called Mrs. Wegmann "Mrs. Wigwam" in Sea City, Here We Come!. He's in Stacey's second period class in Stacey's Secret Friend.
- Margie Greene: SMS cheerleader, one of the most popular girls in school; is in Stacey's English class in Stacey and the Cheerleaders.
- Jason Henderson: Logan's understudy in Peter Pan in Starring the Baby-sitters Club!
- Price Irving: Dawn has an overnight crush on him, goes to Winter Wonderland dance with him in Snowbound. Then she doesn't think that they have anything in common.
- Kevin: In modern living class with Mary Anne and Logan; "marries" Angelia; they lose their child-egg in Mary Anne + 2 Many Babies.
- Kathleen Lopez: Girl who becomes cheerleader instead of Stacey. Leaves after she learns that she got in by default in Stacey and the Cheerleaders
- Jay Marsden
- Amanda Martin: Girl in Stacey's class who goes to the Spring Dance with Sam Brewer in Stacey's Big Crush. She's on the Mathletes in Stacey the Math Whiz.
- Wayne McConville: SMS basketball star; Friend of Robert's, goes out on double date with Kathleeen Lopez, Robert, and Stacey in Mary Anne Breaks the Rules. Also once went out on date with Claudia.
- Beverly McManiman: Claudia hated her in the fourth grade mentioned in Claudia and Mean Janine.
- Miles: In Modern Living class with Mary Anne; marries Shawna Riverson has never taken care of baby before Shawna wants a divorce in Mary Anne + 2 Many Babies.
- Savannah Minton: Costume designer for Peter Pan in Starring the Baby-sitters Club!.
- Iri Mitsuhashi: Japanese student who's in some of Claudia's classes; her just friends date for the Winter Wonderland Dance in Snowbound.
- Kristin Reinhardt mentioned in Dawn and the Big Sleepover
- Jodi Reynolds mentioned in Dawn and the Big Sleepover
- Nicole Rogers: mentioned in Dawn and the Big Sleepover
- Bruce Schermerhorn: In Dawn's math class, she likes him in Logan Likes Mary Anne!. He things Mary Anne's new haircut, and her new look, is great in Mary Anne's Makeover.
- Ray Stuckey mentioned in Dawn and the Big Sleepover.
- Rodge Somerset: Friend of Alan Gray's; they do a routine together for the Leicester Lodge talent show in Baby-sitters' Winter Vacation.
- Ellie Szilagyi: Sits in front of Cokie in social studies class; wants to be friends with Cokie but Cokie won't let her until her complexion clears up Starring the Baby-sitters Club!.
- Tarik: New guy in school, in Modern living class with Mary Anne; "Marries" Zoe in Mary Anne + 2 Many Babies.
- Bill Torrance: Cute boy in Dawn's physical science class in Dawn's Big Date.
- Penny Weller: SMS cheerleader, one of the most popular girls in school. Is in Stacey's social studies class in Stacey and the Cheerleaders.
- Alex Zacharias: One of Stacey's newest friends, also Robert's friend. Loves New York; often stays with an aunt who lives in Stacey's old neighborhood. Parens are divorcing' Alex can't remember a time when they were happy together. His dad moved out and Alex is feeling devastated; Robert and Stacey offer support. He and his mom move into a small house near Robert.
- Zoe: In Modern Living class with Mary Anne and Logan; marries Tarik in Mary Anne + 2 Many Babies.
- Lane Reynolds: is in Mary Anne and Kristy's English class in Kristy in Charge. He starts making fun of Mallory.
- Parker Harris: is in Mary Anne and Kristy's English class in Kristy in Charge. He starts making fun of Mallory.
- Shane Miller: is in Mary Anne and Kristy's English class in Kristy in Charge. He starts making fun of Mallory.
- Jojo: In Abby's math class and wears glasses sometimes in Abby the Bad Sport.
- Wellner Wallace: He puked on the lab table when Erica's science class started to dissect frogs in Claudia and the Friendship Feud.
- Margie Greene: is an sms cheerleader and popular at school. She's dating a high school freshman who is a track star. She wears a necklace he gave her.
- Hannah Toce compliments Mary Anne's sweater in Mary Anne's Makeover and is described as glamorous, popular and aloof.
- Ellie Szilagyi: sits in front of Cokie Mason in social studies class and wants to be friends with Cokie and Grace Blume, but Cokie won't let her until her complexion clears up in Starring the Baby-sitters Club!.
- Stephanie Kingsley: Claudia lines up behind her in Graduation Day.
- Maria Jonaitis: In Stacey's math class in Stacey's Big Crush, she liked Mr. Ellenburg.
- Francie Ledbetter: She was born the same week as Claudia and goes to SMS with her in Claudia and the Great Search.
Unknown Grade[]
- Jennifer Abrams: Auditions for Peter Pan Starring the Baby-sitters Club!
- Corinne Baker: Hangs out with SMS's Basketball group. She went out with Robert Brewster a few times and is jealous of Stacey in Stacey and the Cheerleaders.
- Barbara: Summer school classmate of Claudia's. She wants to keep in touch in Sea City, Here We Come!.
- Kelsey Bauman: New boy Stacey likes and asks to the Halloween Hop in Kristy's Mystery Admirer.
- Shawn Benedict: She is coaxed by Kristy into competing in the cross-country ski race at Leicester Lodge in Baby-sitters' Winter Vacation.
- Roger Bucknell: He auditions for Peter Pan in Starring the Baby-sitters Club!.
- Carly: Girl that Claudia befriends in summer school. She is a watercolorist and potter; has a pottery wheel in her basement.
- Madeline Carver: Auditions for Peter Pan.
- Correen: playing on the SMS softball team in Kristy and the Copycat.
- Miranda Elliot: Compete in Leicester Lodge ski race in Baby-sitters' Winter Vacation.
- Franklin Enell: auditions for Peter Pan in Starring the Baby-sitters Club!.
- Fran: In Claudia's summer school class; thinks eh might have to repeat it again in Sea City, Here We Come!.
- Bobby Henson: orignally wants to play "Doe a Deer" with his armpit for Leicester Lodge talent show, then changes routine and performs Lucy's Vitameatavegamin skit in Baby-sitters' Winter Vacation.
- Alvin Hopper: At Leicester Lodge gets call from his mother to make sure he's taking his allergy pills in Baby-sitters' Winter Vacation.
- Malik Jaffrey: drop-dead cute SMS basketball star in Stacey and the Cheerleaders.
- Andra Kirkland: has the fastest skating time at Leicester Lodge in Baby-sitters' Winter Vacation.
- Kurt: boring guy who takes Claudia to movie and video arcade as part of personal ad-inspired date in Claudia and the Perfect Boy.
- Francie Ledbetter: born the same week as Claudia in Stoneybrook in Claudia and the Great Search.
- Lindsay McManus: Competes at Leicester Lodge Ski race in Baby-sitters' Winter Vacation.
- Terry Morgan: Announcer at Leicester Lodge talent show in Baby-sitters' Winter Vacation.
- Nathan: short guy with thick glasses, send an ad to Claudia's Personals; meets Liza Shore, who is as fascinated by ancient Egypt as he is in Claudia and the Perfect Boy.
- Harry Nolan: Wide receiver for the SMS football team. He makes track team for the pole vault in Logan's Story.
- Darcy Redmond: SMS cheerleader, one of the most popular girls in the school mention in Stacey and the Cheerleaders.
- Tallie: SMS softball team pitcher, assigns Kristy her "initiation" task in Kristy and the Copycat.
- Theresa: girl that Claudia befriends in Summer school in Sea City, Here We Come!.
- Ethel Tines: Fat girl, teased on the bus in Baby-sitters' Winter Vacation.
- Alex Turnbull: Trying out for the track team with Logan in Logan's Story.
- Amelia White: She wins the snow sculpture contest at Leicester Lodge in Baby-sitters' Winter Vacation.
- Petra Kosinski: on SMS' junior varsity soccer team in Abby the Bad Sport. Abby says that she's a real go getter.
- Bruce Jamison: he is against ending school spirit month in Dawn and the School Spirit War.
- Diana Roberts is a student at Stoneybrook Middle School who once baby-sat for Betsy Sobak.
- Lisa Kedem: tries out for the cheerleading squad in Stacey and the Cheerleaders.
- Ronnie Gallea:tries out for the cheerleading squad in Stacey and the Cheerleaders.
- Diane Maqnani: tries out for the cheerleading squad in Stacey and the Cheerleaders.
Kelsey Middle School[]
Unknown Grade[]
- Connie: Is fifteen but she seems younger in both size and behavior. She's in Abby the Bad Sport.
- Sandy: In special ed, she's in Abby the Bad Sport.