Captain
Yahweh
Foreman Bill
Tubby
Detective James LeBaron
King
Jeremiah
The Narrator
Barkley
Joe Evans
King Ferdinand IV / Swarm Lord (voice)
Hollis Bodine
Abner Rosner
Dr. Mike Campbell (archive footage) (uncredited)
Zach
Cole Jackson
Arnie
Jake
Dr. Berquist
Mike McGavin
Ted Michaels
Sergei
Sgt. Vince Marlow
Dr. Mike Campbell
Joe Evans
James 'Grizzly' Adams
Grizzly Adams
Jake
Nick Willis
Benjamin Ward
Frontier Fremont
James Capen "Grizzly" Adams
Brother Billy
Biker with Bandana (uncredited)
Hag (uncredited)
Bearded Biker (uncredited)
Biker
Bearded Biker
Man in Commune (uncredited)
Charlie (uncredited)
Muscle Man