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)