Captain Underpants / Mr. Krupp / Buffalobe (voice)

Nat Faxon

Acting

Harold Hutchins (voice)

Jay Gragnani

Acting

George Beard / Young Mr. Cleveland (voice)

Ramone Hamilton

Acting

Narrator / Putter Mulligan (voice)

Sean Astin

Acting

Jessica / Dressy / Smartaconda (voice)

Dayci Brookshire

Acting

Melvin / Stanley Peet (voice)

Jorge Diaz

Acting

Benjamin Franklin (voice)

Todd Grimes

Directing

Comic Narrator / Marlin (voice)

Peter Hastings

Directing

Steve "Gooch" Yamaguchi (voice)

Evan Kishiyama

Acting

Mr. Meaner (voice)

David Koechner

Acting

Mr. Cleveland / Viper Chai (voice)

Phil LaMarr

Acting

Erica (voice)

Erica Luttrell

Acting

Miss Anthrope (voice)

Patty Mattson

Acting

Bo Hweemuth (voice)

Brennan Murray

Acting

Lee Dingman / Hugo Mouthingwad (voice)

Nolan North

Acting