Back to Knight School

Back to Knight School is an American flash-animated comedy television series produced by Cartoon Network Studios, based on the feature film Knight School. The series was released on Cartoon Network on June 17, 2024 and streaming on HBO Max on June 20. The series ended on September 1, 2025, lasting two seasons, as requested by creator Xavier Shaquille, in time to start production on Knight School II.

Chelsea Kane replaces Anna Kendrick as the main character Ellenor, while Ben Schwartz and John Cleese reprise their roles as Lance and Gerald Reginald III, respectively.

Plot
After the events of Knight School, Ellenor is still attending the eponymous school and plans to ace her classes before graduation. Throughout the series, she and her friends go on various adventures and end up in mishaps either by her or natural manners.

Main

 * Ellenor (voiced by Chelsea Kane), a transfer student of Knight School and currently a Class III student who bears the difficulty of the knowledge of medieval history. She was voiced by Anna Kendrick from the preceded film.
 * Lance (voiced by Ben Schwartz), a Class V student of Knight School who has become Ellenor's boyfriend since the middle of the preceded film.
 * Professor Reginald (voiced by John Cleese), the teacher and founder of Knight School.

Supporting

 * Bill (voiced by Chris Hardwick), a Knight School student that smuggles outside food regardless of the cafeteria's prohibiting.
 * Andrew (voiced by Seann William Scott; later James Arnold Taylor), a Knight School student that is the school tattle-tale.
 * Oliver Jade (voiced by Rickey D'Shon Collins), the only African-American student in Knight School. He was voiced by Damon Wayans Jr. in the film.
 * Troy (voiced by Jerry Trainor), a Knight School student with an egotistical mind and has an attraction to his physical appearance.
 * Mike (voiced by Dave Fennoy), the school janitor. He was voiced by Cedric the Entertainer in the film.
 * Mr. Begley (voiced by Conrad Vernon), the principal of Knight School. Vernon was one of the directors on the film.
 * Darcey (voiced by AJ Michalka), Ellenor's best friend. She was voiced by Avril Lavigne in the film.
 * Jane (voiced by Abby Elliott), Ellenor and Darcey's friend.
 * Anthony (voiced by Frank Welker), Ellenor's father. He was voiced by William Shatner in the film.
 * Gretchen (voiced by Jane Lynch), Ellenor's mother.
 * Myer (voiced Jon Hamm), Lance's father.
 * Hollie (voiced by Amy Rosoff), Lance's mother. She was voiced by Leslie Mann in the film.

Guest

 * Uncle Gary (voiced by Josh Gad), Ellenor's uncle and Gretchen's little brother.
 * Winnifred (voiced by Wendie Malick), Ellenor's aunt and Anthony's sister.
 * Jim (voiced by Pete Browngardt), Winnifred's husband.
 * Wilbur and Rose Jade (voiced by Keith David and Cree Summer), Oliver's parents.
 * Larrie Jade (voiced by Kyle Massey), Oliver's brother.
 * Samantha Jade (voiced by Raven-Symoné), Oliver's sister.
 * Kenneth and Jackie (voiced by Bill Fagerbakke and Kaitlyn Robrock), Darcey's workaholic parents.
 * Irving and Lacey (voiced by Paul Reubens and Lake Bell), Jane's overbearing parents.
 * Alex (voiced by Kristen Wiig; later Grey Griffin), Jane's crush and later "significant other".

Animation
Like the film, the animation for this series was provided by Mercury Filmworks.

Casting
As Shaquille knew that celebrity cast members are expensive, he chose many full-time voice actors and actresses for the specific cast; Chelsea Kane was cast as Ellenor, Phil LaMarr as Oliver Jade, Dave Fennoy as Mike the Janitor, and Frank Welker as Anthony. The cast members of the film such as Ben Schwartz, John Cleese, and Jane Lynch reprise their roles.

Music
Brad Breeck was hired composing the score for the series; this makes it Breeck's second Cartoon Network series after We Bare Bears.

Home media
The first season was released on DVD on June 3, 2025, with its second season released on DVD on June 2, 2026. The entire series was released on DVD and Blu-ray on June 2, 2026 by Warner Bros. Home Entertainment. One of the bonus features includes a 7-minute first look at Knight School II.