A nuclear leak creates a mutant Slithis sea monster, which terrorizes the variety of pets, winos, and hippies who hang around Venice, California.
Wayne Connors
Jeff Connors
Dr. Erin Burick
Dr. John
Chris Alexander
The Monster
Preston, wino #1
Bunky, wino #2
Jack Dunn
Helen Dunn
Doug
Jennifer
Rex
Drunk #1
Drunk #2
Drunk #3
Policeman at house
Chris' Uncle
Kid throwing frisbee #1
Kid throwing frisbee #2
Radio Announcer (voice)
Police Chief
Dr. Risling (uncredited)
Nicholas, deck hand #2 (as Marcus Harvey)
