Cast table : =
Main cast (credited) : =
Recurring cast (2+ episodes) : =
Guest cast (1 episode)
Main •
Jules LeBlanc as Rhyme McAdams (main, seasons 1–6; recurring, season 7; guest, seasons 8–9): Harmony's older sister, Ellie and Quinn's best friend, and Astrid's cousin • Hayley LeBlanc as Harmony McAdams (seasons 1–9): Rhyme's 12-year-old sister, and Astrid's cousin. Unlike Rhyme, Harmony is quite feisty and is not afraid to speak her mind. She takes over as series lead in season 7. She starts her own Chicken Girls, which includes Claire, Bel and Leyla. • Hayden Summerall as Tommy "T.K." Kaye (main, seasons 1–2, 6; recurring, season 3, 7–8; guest, season 5, 9): Rhyme's childhood friend, and later boyfriend •
Brooke Elizabeth Butler as Ellie Mack (main, seasons 1–6; recurring, seasons 7–8): Rhyme's, Quinn's and Kayla's best friend •
Riley Lewis as Quinn Forrester (main, seasons 1–6; guest star, season 7; recurring, season 8): Rhyme and Ellie's best friend since childhood and become best friends with Kayla when the girls are in middle school •
Indiana Massara as Rooney Forrester (main, seasons 1–6; recurring, seasons 7–8): Quinn's step sister and Birdie's best friend •
Mads Lewis as Birdie Kaye (main, seasons 1–6; recurring, season 7): TK's older sister and Rooney's best friend • Aliyah Moulden as Luna (seasons 1–6): the former captain of the Power Surge dance team •
Rush Holland as Flash (main seasons 1–6, guest, season 9): TK's and Ace's best friend, and Kayla's former boyfriend. It is revealed by his father in season 2 that his real name is Frederick. •
Dylan Conrique as Kayla Seltzer (main, seasons 1–4; guest, season 7): A friend of Ellie where Ellie met in dance camp and become best friends with Rhyme and Quinn. •
Caden Conrique as Tim Sharp (seasons 1–4): the former editor in chief of Attaway Appeal, Kayla's cousin, and Rhyme's former boyfriend •
Carson Lueders as Ace (main, seasons 1–3; guest, season 4, 9): TK's and Flash's good friend. He moved to California between seasons 3 and 4 when he sold his and Flash's app called "'Sup" to an investor. •
Matthew Keoni Sato as Robbie Robbins (main, seasons 2–5; recurring, season 6): Ellie's on-off boyfriend. His mother is Robin Robbins, a famous music producer. • Paul Toweh as Ty Walker (main, seasons 3–6; guest, season 8): Luna's boyfriend and Walker's elder brother •
Marlhy Murphy as Stephanie Stewart (main, seasons 3–6; recurring, season 2): Rooney's ex-girlfriend • Donovan Miller as Wes (main, seasons 5–6; recurring, season 7): Astrid's co-worker •
Pilot Paisley-Rose as Astrid Davison (main, seasons 5–6; recurring, season 7): Rhyme's and Harmony's cousin •
Avani Gregg as Gemma (season 6) • Coco Quinn as Katie (main, season 7–present; guest, season 5): Harmony's childhood best friend who is the member of the dance team. •
Txunamy Ortiz as Brittany Diamond (main, seasons 7–8; guest star, seasons 2–3): Harmony's childhood best friend, and the member of the dance team. •
Enzo Lopez as Peyton "PK" Kaye (season 7–11): TK's and Birdie's cousin • Skyler Aboujaoude as Leyla (seasons 7–9) Harmony, Claire and Bel's best friend and is longtime friends with Darnell, Gus and Eggie. • Santiago Carrera as Gus (seasons 7–9): a friend of Walker and Eggie • Matteo Gallegos as Jordan (seasons 7–8): An 8th grader who briefly dated Harmony and had a love triangle with Harmony and Leo McCoy. • Liam-Alexander Newman as Darnell Walker (seasons 7–9): Ty's younger brother. He is longtime friends with Eggie, Gua and Leyla. •
Aidan Prince as Edward "Eggie" Kham (seasons 7–9): the captain of the football team and is long time friends with Walker, Gus and Leyla and PK • Kheris Rogers as Bella "Bel" Bosker (season 7–11): the current captain of Attaway Dance Team, and a chicken girl and is Harmony, Claire and Leyla's best friends •
Elliana Walmsley as Claire Fitzroy (season 7–11): an overachieving student, and a member of the chicken girl, and is Harmony, Leyla and Bel's best friends •
Corinne Joy as Simone (main, season 8–11; recurring, season 7): Harmony's former friend and the temporary captain of the new Power Surge • Thaddeaus Ek as Leo (season 8): a
theater kid, who plays the male lead in the school production of ''
A Midsummer Night's Dream''
Recurring Cast table • : =
Recurring cast (2+ episodes) : =
Guest cast (1 episode)
Introduced in season 1 • Jeremiah Perkins as Hamilton (seasons 1–4): Rooney's ex-boyfriend •
Kelsey Leon as Kimmie (seasons 1–3): a friend of Luna's and former member of the Power Surge dance team • Erin Reese DeJarnette as Beth (seasons 1–3): a friend of Luna's and former member of the Power Surge dance team • Tallinn Silva as Jade (seasons 1–3): a friend of Luna's and former member of the Power Surge dance team •
Jenna Davis as Monica Allen (seasons 1–2): a friend of Luna and former member of the Power Surge dance team. Her parents own Allen's Arcade. She is the granddaughter of Cathy Fitzroy and Allen Alvarez from
A Girl Named Jo. •
Breanna D'Amico as Sandy (seasons 1–2): a friend of Ellie's and another member of Miles' band •
Greg Marks as Henry Barnett (seasons 1, 3): Rooney's former boyfriend •
HRVY as Miles (season 1): Ellie's former love interest •
Caitlin Carmichael as Laney Raymond (season 1): TK's former girlfriend • Isabella Durham as Sierra Raymond (season 1): Laney's twin sister and a girl Ace briefly dated
Introduced in season 2 •
Holly Gagnier as Robin Robbins (seasons 2–3): a music producer in L.A. and ex-best friend of Miss McCallister, Ms. Mack, & Mrs. Sharpe. Her real name is Roberta Roach. • Billy LeBlanc as Mr. Forrester (seasons 2–3): Rooney's father and Quinn's stepfather •
Steven Parker as Principal Mathers (seasons 2–3): the principal of Attaway High •
Brooke Burke as Tiffany Mack (seasons 2–3): Ellie's mother •
Lilia Buckingham as Autumn Miller (season 2): Luna and Birdie's rival and the captain of the Millwood Dance Team • Olivia Espara as Naomi (season 2): a former member of the Attaway Dance Team • Grant Knoche as Jules (season 2): Luna's childhood friend • Christian Lalama as Paul (season 2): the manager for the Millwood Dance Team who develops a crush on Rhyme •
Ariel Martin as Dru (season 2): an employee at the Attaway Arcade • Aidette Cancino as Holly (season 2): Ace's former crush. She works for the Attaway Appeal and it is revealed by Tim that she got Matilda (a character played by
MaeMae Renfrow from another Brat show based on/named after
Attaway Appeal) fired from the newspaper. • Nathan Triska as Frankie (season 2): a former member of Attaway Dance Team, dubbed "Chicken Boy" by Rhyme, Quinn, Kayla, and Birdie •
Brec Bassinger as Babs (season 2): Flash's father's assistant, and Ace's crush. She is a struggling actress. • Ben Alezart as Bagel (season 2): the captain of the Attaway school basketball team. In a different Brat show called
Brobot, it is revealed that Bagel's real name is Bobby. •
Andy Milder as Edward (season 2): Flash's father, a famous movie producer who lives in Los Angeles • Alex and Alan Stokes as Lukas and Roscoe (season 2): members of the Attaway school basketball team • Paris Simone as Suzie (season 2): a former member of the Power Surge dance team • Cameron McLaeod as Billy Ridgeway (seasons 2, 5): a member of the Attaway Appeal
Introduced in season 3 • Lily Chee as Britney (seasons 3–5): one of the queen B's at Attaway High. She is a top student and journalist for the
Attaway Appeal. • Sean Cavaliere as Spike Smith (recurring, season 3; guest star, seasons 4–5): Birdie's ex-boyfriend • Jay Ulloa as Drake (seasons 3–4): a theatre actor and Rhyme's ex-boyfriend • Heidi Kaufman as Suzy Kaye (seasons 3–4): TK and Birdie's mother • Emma Maddock as Mel (seasons 3, 5): Stephanie's ex-girlfriend • Tatiana Turan as Molly McAdams (seasons 3, 5): Rhyme and Harmony's mother • Sissy Sheridan as Angie (season 3): the self-titled "queen" of drama club until Rhyme joins • Kaylyn Slevin as Beatrice (season 3): the leader of the queen B's at Attaway High • Isabelle Marcus as Becky 1 (season 3): one of the queen B's at Attaway High • Josie Nivar as Becky 2 (season 3): one of the queen B's at Attaway High •
Rebecca Zamolo as Mrs. Forrester (season 3): Quinn's mother, and Rooney's stepmother • Luke Dodge as young T.K. (season 3) • Trinity Valenzuela as young Rhyme (season 3, 8)
Introduced in season 4 • Diezel Braxton as Arthur (seasons 4–5): a student at Attaway High •
Paul Thomas Arnold as Junior Chambers (season 4–present): the owner of Junior's. He is a recurring character across the Brat universe. •
William Franklyn-Miller as Ezra Grant (season 4): Rhyme's former crush, and classmate whom she met in
Spring Breakaway. • Kiana Naomi as Effie (season 4): a good friend of Rhyme's who attends Crown Lake. The two met in
Spring Breakaway. • Alex Guzman as Jax Brinkman (season 4): Britney's boyfriend •
Nataliz Jiménez as Elena (season 4): Ezra's abusive stepmother • Dino Petrera as Billy (season 4): a kid who works for the
Attaway Appeal Introduced in season 5 • Carter Southern as Isaac Jones (season 5): a member of Attaway High's football team. He is a main character in
Zoe Valentine. • Tariq Brown as Evan (season 5): a member of Attaway High's football team • Kai Peters as Jesse Hawkins (season 5): a classmate of Rhyme and Wes's rival, also known as "The Falcon", which is his stage name for the Attaway radio station he runs • Blaine Maye as Johnny Valentine (season 5): Robbie's cousin and River's friend. He stars in
Dirt and also appears in
Boss Cheer. • Catherine Grady as Mrs. Henderson (season 5): the social studies teacher at Attaway High
Introduced in season 6 • Chris Romero as Carlos (season 6): a member of Ellie's debate team • Gigi Cesare as Tonya (season 6): a girl in Birdie, Rooney, Luna, and Ty's gym class • Amelie Anstett as Sadie (season 6): TK's girlfriend back in Texas • Anirudh Pisharody as Benji (season 6): Gemma's ex-boyfriend • Kesley Leroy as Jessica (season 6): a member of the Attaway High cheer team
Introduced in season 7 • Andrew Davis II as Mr. Giamarra (seasons 7–8): a reading and literature teacher for Harmony and her friends • Sawyer Fuller as Portia (seasons 7–8): a worker at the Parlor Ice Cream Shop • Ansa Woo as Tanya Kham (season 7): Eggie's mother who is best friends with Bel's mother • Alyssa Gutierrez-Sierra as Star (season 7): Simone's teammate and Harmony's former friend
Introduced in season 8 • Brooklyn Courtney-Moore as Margo (season 8–9): Leyla's friend and later rival and head editor of the junior appeal • Lauren Rosa as Young Harmony (season 8) • Ella Noel as Tamara (season 8) • Mila Skye Rouse as Judy (season 8–9) • Sir Cornwell as Ernie (season 8–9) • Hailey Villarreal as Grace (season 8)
Introduced in season 9 • Mehra Marzbani as Yasmina • Tina Hohman as Emerson • Adriana Camposano as Poppy
Introduced in season 10 • Nicolette Peck as Ivy • Lizzy Howell as Kara • Raihyah as Bailey • Ayumi Matsumoto as JJ • Anna Mia Conley as Petra • Meztli Quetzalcoatl as Theo • Matthew Garbacz as Finn • La'Ron Hines as Ben ==Episodes==