Robert Walden

as Donald Segretti

as Sperm

as Elliot Whitter

as Brice Mack

as Herman Lasky (aka Chad Cox)

as Dr. Brubaker

as Looter

as Dr. Janeway

as Mr Fisher

as Tommy

as Fred Barker

as Adam Richette

as David Blume

as J. Robert Oppenheimer

as Eddie Chiario

as Gen. Tom Brockton

as Gibbs

as Diller

as Stephen Block

as Detective Williams

as Robert Lane

as Finn (archive footage)

as Frank

as Dr. Kubelkoff

as Finn

as Dick Dubin

as Tom Corman

as Alex Cavanaugh

as Brian O'Donnel

as Winslow Smith

as Checker

as Sheriff Joe Calabro

as Manager

as Self

as Murdock