Tom Kenny
Ham / Reporter #1 (voice)
Zack Shada
Comet (voice)
Patrick Warburton
Titan (voice)
Cheryl Hines
Luna (voice)
Carlos Alazraqui
Houston / Piddles The Clown / Camera Guy (voice)
Laura Bailey
Kilowatt / Computer Voice (voice)
John DiMaggio
Zartog / Human #1 / Human #2 (voice)
Stanley Tucci
Senator (voice)
Patrick Breen
Dr. Bob (voice)
Jane Lynch
Dr. Poole (voice)
Omid Abtahi
Dr. Jagu / Reporter #2 (voice)
Noreen Reardon
Alien #1 (voice)
David Michie
Alien #2 (voice)