Rob Paulsen
Gramps / Pilot / Mule (voice)
Kath Soucie
Girl / Alien Kid 1 (voice)
Christine Cavanaugh
Boy / Alien Kid 2 (voice)
Charlie Adler
Wimpy Alien / Alien Dad / Terrified Man / Alien Grandpa (voice)
Julianne Elizabeth Davis
President (voice)
Neil Dickson
Alien Leader / Sphinx (voice)
Butch Hartman
Gramps
Released
Bande-annonce