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Rob PaulsenGramps / Alien Co-Pilot / Mule (voice)
Charlie AdlerWimpy Alien / Alien Dad / Terrified Man / Alien Grandpa (voice)
Neil DicksonAlien Leader / Sphinx (voice)
Julienne DavisPresident (voice)
Kath SoucieGirl / Alien Kid #1 (voice)
Christine CavanaughBoy / Alien Kid #2 (voice)
