We unfortunately do not have a biography for Greydon Clark. Please consider contributing one.
The Foreign Eye
Self
Nigger Lover
Jim
Survival of the Film Freaks
Himself
Stargames
Adam
The Mighty Gorga
Dan Remington
Angels' Brigade
Movie Director (uncredited)
Dracula vs. Frankenstein
Strange
Hell's Bloody Devils
FBI Assistant Anderson
Dance Macabre
Anderson
Satan's Sadists
Acid
42nd Street Memories: The Rise and Fall of America's Most Notorious Street
Uninvited
Lab Doctor
Final Justice
Sheriff Bob
Black Shampoo
Wilson's Man on Phone (voice) (uncredited)