캡틴 언더팬츠

케빈 하트

George Beard (voice)

토머스 미들디치

Harold Hutchins (voice)

에드 헬름스

Mr. Krupp / Captain Underpants (voice)

닉 크롤

Professor Poopypants (voice)

조던 필

Melvin (voice)

크리스틴 샬

Edith (voice)

DeeDee Rescher

Ms. Ribble (voice)

Brian Posehn

Mr. Rected (voice)

David Soren

Tommy (voice)

멜 로드리게즈

Mr. Fyde (voice)

Susan Fitzker

Ms. Dayken (voice)

Lynnanne Zager

George's Mom (voice)

Tiffany Lauren Bennicke

Sad Girl (voice)

James Ryan

Mime (voice)

레슬리 데이빗 베이커

Officer McPiggly (voice)

Sugar Lyn Beard

Goodie Two-Shoes Girl (voice)