SADRŽAJ
A California naval base becomes the scene of chaos when the eggs of a prehistoric mollusc hatch.
- Tim HoltLt. Cmdr. John 'Twill' Twillinger
- Audrey DaltonGail MacKenzie
- Hans ConriedDr. Jess Rogers
- Barbara DarrowJody Simms
- Max ShowalterDr. Tad Johns (as Casey Adams)
- Harlan WardeLt. Robert 'Clem' Clemens
- Gordon JonesSheriff Josh Peters
- Mimi GibsonSandy MacKenzie
- Marjorie StappConnie Blake
- Jody McCreaSeaman Fred Johnson
- Wallace Earl LavenSally (as Eileen Harley)
- Robert BenevidesSonarman 2nd Class Morty Beatty (uncredited)
- John CarlyleMonster Victim (uncredited)
- John CloseDeputy Larry (uncredited)
- Michael DuganClark (uncredited)
- William ForrestRear Adm. Greenhouse (uncredited)
- Gil FryeDeputy Scotty (uncredited)
- Dan GachmanDeputy Brewer (uncredited)
- Joseph HamiltonLock Watchman (uncredited)
- Charles HerbertBoy with Morty's Cap (uncredited)
- Shep HoughtonHelicopter Crewman (uncredited)
- Byron KaneCoroner Nate Brown (uncredited)
- Dennis McCarthyGeorge Blake - Lab Assistant (uncredited)
- David McMahonPatterson (uncredited)
- Ralph MoodyLock 57 Watchman (uncredited)