Le Peuple des Abimes

Eric Porter

— Lansen

Hildegard Knef

— Eva Peters

Suzanna Leigh

— Unity Webster

Tony Beckley

— Harry Tyler

Jimmy Hanley

— Patrick, the bartender

James Cossins

— Nick, chief engineer

Reg Lye

— The Helmsman

Ben Carruthers

— Ricaldi

Nigel Stock

— Dr. Webster

Neil McCallum

— First Officer Hemmings

Donald Sumpter

— Sparks, the Radioman

Victor Maddern

— The Mate

Michael Ripper

— The One-Eyed Crewman

Dana Gillespie

— Sara

Darryl Read

— El Supremo

Eddie Powell

— The Inquisitor