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Rob Corddry
Gary Supernova (voice)
Brendan Fraser
Scorch Supernova (voice)
Jessica Alba
Lena (voice)
Steve Zahn
Hawk (voice)
Sarah Jessica Parker
Kira Supernova (voice)
Ricky Gervais
Mr Bing (voice)
Gregg Binkley
Ralph (voice) (uncredited)
Sofía Vergara
Gabby (voice)
Kaitlin Olson
3D Movie Girl (voice)
Ashley Eckstein
Alien (voice)
Craig Robinson
Doc (voice)
Jane Lynch
Io (voice)