Richard Johnson
Hugh Drummond
Daliah Lavi
Helga
Beba Lončar
Pandora
James Villiers
Carl Petersen
Vanessa Howard
Robot No. 7
Maurice Denham
Mr. Mortimer
Robert Morley
Miss Mary
Sydne Rome
Flicky
Adrienne Posta
Drummond's Daily
Florence Desmond
Lady Manderley
Ronnie Stevens
Peregrine Carruthers
Virginia North
Robot No. 9
Nicholas Phipps
Lord Dunnberry
Yutte Stensgaard
Robot No. 1
George Belbin
Maj. Newman
Richard Hurndall
President of Aircraft Company
Marga Roche
Birgit
Douglas Sheldon
Kruger
Maria Aitken
Robot Flight Attendant (uncredited)
Bob Anderson
Senior Aerodynamics Engineer (uncredited)
Peter Brace
Petersen Bodyguard (uncredited)
Johnny Briggs
Air Traffic Controller (uncredited)
Shakira Caine
Robot Observer (uncredited)
Carmen Dene
Party Girl in Green Dress (uncredited)
Frank Gatliff
Man Sitting Behind Pilot
Philip Gilbert
Test Co-Pilot (uncredited)
Dora Graham
Robot Twin (uncredited)
Doris Graham
Robot Twin (uncredited)
Aidan Harrington
Test Navigator (uncredited)
William Kendall
Wing Commander Aston (uncredited)
Juba Kennerley
Test Area Official with Bow Tie (uncredited)
Olga Linden
Blond Robot in Green Jumpsuit (uncredited)
Joanna Lumley
Robot Saboteur (uncredited)
John Paul
Test Pilot (uncredited)
Patsy Snell
Brunette Robot with Bangs (uncredited)
Guy Standeven
Flight Test Observer (uncredited)
Totti Truman Taylor
Cookery Student Wearing Hat (uncredited)
Jim Tyson
Hefty Cookery Student (uncredited)
Les White
Petersen Bodyguard (uncredited)