Wayne CrawfordMike Canfield / Guión / Productor / Underwater Director Of Photography Jason EversDr. Elliot Snow Roberta LeightonLiza Williams William KerwinSheriff Ben Williams Barbara KeeganMaggie Snow (as Bobbie Ellyne Kosstrin) Jerry AlbertBubba (as Jerry Rhodes) Harry KerwinGoverment Agent #1 / Director / Guión / Productor Rick RhodesGoverment Agent #2 William RoundebushBoy Student Denise TaylorGirl Student Dan FitzgeraldCook (as Daniel L. Fitzgerald) Edmund LupinskiBoy on Beach (as Ed Lupinski) David RenierArguing Man on Street #1 Ray MichelArguing Man on Street #2 Burt RichardsSecurity Guard #1 Dick SterlingSecurity Guard #2 Scott WohrmanLobster Fishing Boy Bob HiresCar Fighting Man Elizabeth MichelCar Fighting Woman Jill ShakoorGirl With Dog Craig DenneySelf - Presenter Harry KerwinGoverment Agent #1 / Director / Guión / Productor Wayne CrawfordMike Canfield / Guión / Productor / Underwater Director Of Photography Edwin GibsonDirector Of Photography Barbara KerwinCostume Design Elizabeth LambertMakeup Artist Betty KerwinSupervisor de guion Ed WujciakFirst Assistant Director Francis A. PayneSecond Assistant Director Derek C. AndersonAssistant Editor Klaus SchulzeCompositor de música original Emily S. RiddellGerente de producción 
