Cucumber Castle

Barry Gibb

— Prince Frederick, King of Cucumber / Singer

Maurice Gibb

— Prince Marmaduke, King of Jelly / Singer

Lulu

— Lulu the cook

Spike Milligan

— The Court Jester

Vincent Price

— Wicked Count Voxville

Eleanor Bron

— Lady Margerie Pee

Pat Coombs

— Nurse Sarah

Eric Clapton

— Eric Clapton

Ginger Baker

— Ginger Baker

Steve Winwood

— Steve Winwood

Ric Grech

— Ric Grech

Frankie Howerd

— Dying King

Julian Orchard

— Julian the Lord Chamberlaine

Roger Daltrey

— Roger Daltrey

Mick Jagger

— Mick Jagger

Donovan

— Donovan

Marianne Faithfull

— Marianne Faithfull