John Steed
Catherine Gale
Emma Peel
Tara King
Dr. David Keel
Mother / Sir George Collins
Alex / Dr. Felix Teasel
Venus Smith
Ivan / Slater
Briadier Mellor / Ronnie Vance (uncredited)
Prewitt / Jupp
Lord Melford / Webster
Henry Farrow / Cavell
Vesta / Loris
Thyssen / Ezdorf
Ralph Bleech / Fernand
Gilbert / Manservant
Kanwitch / Markel
Nicholls / Farmer
Attendant / Guest
Carl / Rasker
Rupert / Masgard
Crewe / Jasper Lakin
Budge / Frederick Yuill
