플래닛 51

저스틴 롱

Lem (voice)

드웨인 존슨

Chuck Baker (voice)

제시카 비엘

Neera (voice)

숀 윌리엄 스콧

Skiff (voice)

게리 올드만

General Grawl (voice)

존 클리즈

Professor Kipple (voice)

Freddie Benedict

Eckle (voice)

Alan Marriott

Glar (voice)

매튜 혼

Soldier #1 (voice)

제임스 코든

Soldier #2 (voice)

알란 커밍

Alien Mailman (voice)

프랭크 웰커

Ripley / Rover (voice)

짐 커밍스

Lem's Dad (voice)

르네 젤위거

Lem's Mom (voice)

Candi Milo

Teacher (voice)

Lewis Macleod

Additional Voices (voice)