Bradford DillmanPaul Grogan Heather MenziesMaggie McKeown Kevin McCarthyDr. Robert Hoak Barbara SteeleDr. Mengers Melody Thomas ScottLaura Dickinson Bruce GordonColonel Waxman Shannon CollinsSuzie Grogan Janie SquireBarbara Randolph Jack PaulesonBoy in Canoe Eric HenshawFather in Canoe Diamond FarnsworthWater-skier Bruce Paul BarbourMan in Boat Sally BondiSwimming Deb (uncredited) Eric BraedenDr. Robert Hoak (swimming double) (uncredited) Joe DanteScuba Diver #2 (uncredited) / Režisér / Střihač Amy Holden JonesHertz Clerk (uncredited) Andrew G. La MarcaScuba Diver #1 (uncredited) John SaylesArmy Sentry (uncredited) / Scénář Phil TippettScuba Diver (uncredited) / Creature Design Joe DanteScuba Diver #2 (uncredited) / Režisér / Střihač John SaylesArmy Sentry (uncredited) / Scénář Roger CormanVýkonný producent Chako Van LeeuwenKoproducent Jeff SchechtmanVýkonný producent Hisako TsukubaKoproducent Kerry MellinArt Direction Jamie AndersonDirector Of Photography M. Todd HenrySecond Unit Director Of Photography Vincent PrenticeSpecial Effects Makeup Artist Rob BottinSpecial Effects Makeup Artist Jack BuehlerWardrobe Assistant Charles H. EgleeAsistent režie Dick LowrySecond Unit Director Brenda BalandaAssistant Editor Stacy RussoAssistant Editor Pino DonaggioHudební skladatel Joel GoldsmithLocation Sound Mixer Tony Santa CroceBoom Operator Richard AndersonSound Effects Dave YewdallSound Effects Teresa EcktonSound Effects Kendrick SweetDialogue Editor Tom JacobsonVedoucí výroby Harry WowchukLocation Manager Susan ArnoldCasting Director Ashley StieglitzProduction Secretary Ed TarbuttonProduction Assistant Jeff HoffmanProduction Assistant Jim BoniProduction Assistant Robet BrownProduction Assistant Sharron Reynolds-EnriquezProduction Secretary Dave MortonMechanical & Creature Designer Phil TippettScuba Diver (uncredited) / Creature Design Doug BarnettMechanical & Creature Designer 
