Paul Mantee

as Self

as General Willard

as Reporter

as Corassa

as Father Poole

as Doctor

as Professor McRoe

as Health Inspector

as Judge Mitchell Katlin

as Mike

as Bailey

as Leo David Fender / Ronald Olson / Jack Landis

as Commander Clayton

as Agent Watkins

as Chris Thomas

as Albert Hastings

as Lt. Sandusky

as Al Corassa

as Detective Thomas

as Roy Harris

as James DiGiorgio

as Ordway

as Ordway

as Walther

as Sweeney

as Col. Virgil Hedgepath

as Capt. Brown

as Karl

as Roy

as Dr. McEvoy

as General Cochran

as Barton

as Eddie

as FBI Agent Fuller

as Carrara

as Roy Moore

as Lawrence

as Morgan

as Fake Carl Hopwood

as Perkins

as Sgt. O'Neal

as Edward

as Robert Fowler

as Frank

as Cable

as Man in Windbreaker

as Troy

as Terry

as Mickey

as Jim Hadley

as Hank Yankowski

as Joe Taggart

as Adams

as Wallace Brooks

as Renfro

as Jiggs

as Father Minetti

as Dick Dagger

as Marcos

as Frank Viola

as Paul

as Tommy Gantt

as Dave Winters

as Prof. Bradford Link

as Deputy Vern Hammond

as Self - Dick Dagger (archive footage) (uncredited)

as Byron Miller

as Bill Fisher

as Ambahai

as Shago Martin

as Cornell

as Frank Macklin

as Vic

as Gerald Spain

as Norman Whitehead

as Segura

as Atawa

as Commander Christopher Draper

as Hal Williams

as Jack Burmas

as Deputy Bob Howe

as Neurosurgeon

as Ori

as Nick Malatesta

as Sgt. Taliman

as Johnny Crow

as Jimmy

as Morris Copley