Col. Tom Carlsen

Col. Colin Caine

Dr. Hans Fallada

Space Girl

Dr. Armstrong

Dr. Bukovsky

Roger Derebridge

Sir Percy Heseltine

Ellen Donaldson

Lamson

Guard

Second Vampire

Physician

Pathologist

Metallurgist

The Minister

Prime Minister

Prime Minister's Secretary

First Scientist

Rawlings

Navigation Officer

Fatherly Guard

Brash Guard

Second Guard

Kelly

N.A.S.A. Man

First Vampire

London Man (uncredited)

Narrator (uncredited)