Spawn of the Slithis

A nuclear leak creates a mutant Slithis sea monster, which terrorizes the variety of pets, winos, and hippies who hang around Venice, California.

• 
  Hy Pyke

  Jack Dunn
• 
  Jack Kelly

  Radio Announcer (voice)
• 
  Bill J. Stevens

  Dr. Risling (uncredited)
• 
  Marc Harvey

  Nicholas, deck hand #2 (as Marcus Harvey)