Captain Underpants / Mr. Krupp / Warply / Captain Pandernuts / Purpk (6 episodes, 2020)
Harold / Dohlar (6 episodes, 2020)
George / Greego (6 episodes, 2020)
Narrator / Abraham Lincoln / Mr. Gigglenose / Uncle Dan (6 episodes, 2020)
Melvin / Stanley Peet / Livmen / Marvin / Mr. Rected / Statrew / Stewart (6 episodes, 2020)
Comic Narrator / Garg (6 episodes, 2020)
Dressy / Jessica / Hypnosinger (5 episodes, 2020)
Mr. Meaner / Sqworg / Mr. Nearme (5 episodes, 2020)
Erica / Arice (5 episodes, 2020)
Moxie Swaggerman / Hailey Comett / Xemio (5 episodes, 2020)
Dr. Shifty Fitzgibbons / Jet Wingman / Itsius (4 episodes, 2020)
Steve 'Gooch' Yamaguchi (3 episodes, 2020)
Dupe Licitous (3 episodes, 2020)
Bo Hweemuth (2 episodes, 2020)
Elbrib (1 episode, 2020)
Miss Anthrope (1 episode, 2020)