Elenco - Blood Suckers
Patrick Macnee
Derek Longbow
Edward Woodward
Dr. Holstrom
Alexander Davion
Tony Seymore
Peter Cushing
Dr. Walter Goodrich
Johnny Sekka
Bob Kirby
Madeleine Hinde
Penelope
William Mervyn
Marc Honeydew
Patrick Mower
Richard Fountain
David Lodge
Colonel
Imogen Hassall
Chriseis
Valerie Van Ost
Don's Wife
Françoise Pascal
Girl at Orgy (uncredited)
Marianne Stone
Cheerful Lady at Party (uncredited)