Thomas Middleditch

as Lester (voice)

James Marsden

as Hank (voice)

Rosario Dawson

as Jolene (voice)

Alfred Molina

as Baron Blackout (voice)

Will Sasso

as The Gluttonator / Union Boss (voice)

Nathan Fillion

as Captain Superior (voice)

Rob Riggle

as Biff (voice)

Jane Krakowski

as Jane (voice)

Craig Robinson

as Stew (voice)

Bobcat Goldthwait

as Jackalope (voice)

Brian Drummond

as Old Doug (voice)

Bobby Henwood

as Yakov (voice)

Ashleigh Ball

as Terri Murphy / Pep Girl Twin (Iliad) (voice)

Kazumi Evans

as Pep Girl Twin (Odyssey) (voice)

Kelly Sheridan

as Additional Voices

Donavon Stinson

as Nick of Time / Bloop (voice)

Ian Hanlin

as Slap Happy / Bleep (voice)

Andy Toth

as Chet (voice)

Donny Lucas

as Brutus (voice)

Felix Wood

as Young Lester (voice)

Jimi Cuell

as Orientation Computer (voice)