Reparto y equipo
- Forrest TuckerAlan Brooks
- Laurence PaynePhilip Truscott
- Jennifer JayneSarah Pilgrim
- Janet MunroAnne Pilgrim
- Warren MitchellProf. Crevett
- Andrew FauldsBrett
- Frederick SchillerMayor Klein
- Stuart SaundersDewhurst
- Colin DouglasHans
- Derek SydneyWilde
- Richard GoldingFirst Villager
- George Herbert de CarnarvonSecond Villager
- Anne SharpGerman Woman with Little Girl
- Leslie HeritageCarl
- Jeremy LonghurstFirst Student Climber
- Anthony ParkerSecond Student Climber
- Theodore WilhelmFritz
- Garard GreenSearch Plane Pilot
- Jack TaylorJim
- Caroline GlaserLittle Girl
- Quentin LawrenceDirección
- Robert S. BakerProducción
- Monty BermanProducción
- Jimmy SangsterEscritor