John Wintergreen
Robert Blake
"Zipper" Davis
Billy Green Bush
Loose Lips
Walter Parazaider
Sgt. Ryker
Joe Samsil
L.A. Detective
Jason Clark
Truck Driver
Michael Butler
Ice Cream Girl
Susan Forristal
Lucy Angle Guercio
Zemko's Girlfriend
Melissa Greene
Detective
Jim Gilmore
The Beard
Bob Zemko
Hippie Kid (uncredited)
Nick Nolte
Harve Poole
Mitchell Ryan
Bike Girl (uncredited)
Adrienne Hayes
Jolene
Jeannine Riley
Willie
Elisha Cook Jr.
Coroner
Royal Dano
VW Bus Driver
Hawk Wolinski
Peter Cetera
Killer
Terry Kath
Pig Man
Lee Loughnane
Title Designer
Dan Perri
Director of Photography
Conrad L. Hall
Director
James William Guercio
Writer
Robert Boris
Music
Costume Design
Rita Riggs