Diretor/a
Sidney J. Furie
DIRETOR/A
Elenco (na ordem dos créditos)
Kieron Moore
Dr. Peter Blood
Hazel Court
Nurse Linda Parker
Ian Hunter
Dr. Robert Blood, Peter's Father
Kenneth J. Warren
Sgt. Cook
Gerald Lawson
Mr. G. F. Morton
Fred Johnson
Tregaye
Paul Hardtmuth
Prof. Luckman
Paul Stockman
Steve Parker, Linda's Husband
Andy Alston
George Beale the Tunnel Expert
Ruth Lee
Girl(uncredited)
John Ronane
Hanson(uncredited)
Pat Ryan
Villager(uncredited)