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