"Due to be crowned King of the Netherworld by his mentor Merlin the Magician, Count Downe — son of Dracula — falls in love with beautiful mortal Amber and finds himself in conflict with Baron Frankenstein, who is vying for the same honourary title."
Harry Nilsson
as Count Downe
Ringo Starr
as Merlin, the Magician
Freddie Jones
as The Baron
Suzanna Leigh
as Amber
Dennis Price
as Van Helsing
David Bailie
as Chauffeur
Shakira Caine
as Housekeeper
Maurice Bush
as Monster
John Colclough
as Bill
Nita Lorraine
as Gorgon Woman
Skip Martin
as Igor
Dan Meaden
as Count Dracula
Rachelle Miller
as Club Hostess
Beth Morris
as Wendy
Jenny Runacre
as Woman in Black
Hedger Wallace
as Vampire
Pamela Conway
as Countess Dracula
Derek Woodward
as Werewolf
John Bonham
as Musician: The Count Downes
Peter Frampton
as The Count Downes
Ricki Farr
Bobby Keys
Keith Moon
Jim Price
Klaus Voormann
Leon Russell
Rick Wills
as Bass Player (uncredited)
Freddie Francis
Director
Paul Buckmaster
Original Music Composer
Jennifer Jayne
Screenplay
Producer
Jerry Gross
Norman Warwick
Director of Photography
Editor