John Steed
Catherine Gale
Emma Peel
Tara King
Dr. David Keel
Mother / Sir George Collins
Alex / Barlow
Venus Smith
Ivan / Slater
Ronnie Vance (uncredited) / Merlin
Prewitt / Jupp
Lord Melford / Webster
Henry Farrow / Cavell
Vesta / Loris
Thyssen / Ezdorf
Ralph Bleech / Fernand
Gilbert / Manservant
Kanwitch / Zoltan
Nicholls / Farmer
Williams / Attendant
Carl / Rasker
Peter Rooke / Masgard
Crewe / Juniper
Frederick Yuill / Lovell
