Equinox
Voltar- Edward ConnellDavid Fielding (as Skip Shimer)
- Barbara HewittSusan Turner
- Jack WoodsAsmodeus
Frank BonnerJim Hudson (as Frank Boers Jr.)- Robin ChristopherVicki (as Robin Snider)
- James PhillipsReporter Sloan (as Jim Phillips)
- Fritz Leiber Jr.Dr. Arthur Watermann (as Fritz Leiber)
- Patrick BurkeDoctor Branson
- Sharon GrayNurse
- Louis ClaytonOld man in cave
- Norvelle Brooks
- Irving L. Lichtenstein
- James DwionThe Orderly
Forrest J. AckermanDoctor on Tape Recorder (voz) (sem créditos)- Jack H. HarrisDetective Harrison (sem créditos)
- Chuck NilesReporter Sloan (voz) (sem créditos)
- Jim DuronThe Green Giant