บลูฮาร์เวสต์

Beverly D'Angelo

Ellen Griswold (voice)

Helen Reddy

Helen Reddy (voice)

Lori Alan

Diane Simmons as Imperial Newscaster (voice)

Chevy Chase

Clark Griswold (voice)

Judd Nelson

John Bender (voice) (uncredited)

Leslie Nielsen

Dr. Rumack (archive footage)

Mick Hucknall

Mick Hucknall (voice)

Rush Limbaugh

Rush Limbaugh / Red 6 (voice)