Stephanie Leonidas as Helena / Anti-Helena

Jason Barry as Valentine

Rob Brydon as Morris Campbell / Prime Minister

Gina McKee as Joanne Campbell / Queen of Light / Queen of Shadows

Dora Bryan as Aunt Nan

Stephen Fry as Librarian

Robert Llewellyn as Gryphon

Lenny Henry as Cops 1-4

Nik Robson as Pingo / Bing

Simon Harvey as Sphinx

Eryl Maynard as Mrs. Bagwell

Andy Hamilton as Small Hairy

Eve Pearce as Future Fruit Lady

Victoria Williams as Nurse

Rick Allen as Man in a Box

Iain Ballamy as Circus band - band leader and soprano sax