Guy Rolfe

Dr. Mark Fenton

Acting

Lisa Daniely

Lisa Durand

Acting

Patricia Dainton

Sister Rogers

Acting

Sydney Tafler

Wade

Acting

Ballard Berkeley

Inspector Austin

Acting

Anton Diffring

Edward Shroder

Acting

Brian Worth

Geoffrey Terry

Acting

Avice Landone

Mrs. Terry

Acting

Eric Berry

Col. Williams

Acting

James Raglan

Sir Oliver Peters

Acting

Alexis Chesnakov

Ship's Captain

Acting

Michael Golden

Harrison

Acting

Edward Dentith

Sergeant Lewis

Acting

Derek Aylward

Acting

William Franklyn

Dr. Gillespie

Acting

Desmond Llewelyn

Police Constable at Barrier

Acting