Christopher McDonald
Big Chuck

Isaac Kappy
Garfunkel

Seth Rogen
Admiral Seasholtz / Alien / Roach

Charlie B. Brown
Myron

Tarek Bishara
The Vulcan / Gruvock (as Thom Bishops)
Stephen Pina
Simon

Danny Trejo
The Chief

Allie Grant
Rogue Leader / Kimmy

Ethan Suplee
Harry Knowles

Jaime King
Amber