Peter Cushing as Prof. Paul

Ron Moody as Zookeeper

Hugh Griffith as Maestro Pamponi

Roy Castle as Photographer

David Rintoul as Etoile

Stefan Gryff as Max Gerard

Lynn Dalby as Christine

Renée Houston as Chou-Chou

Marjorie Yates as Madame Tellier

Norman Mitchell as Tiny

David Bailie as Boulon

John Harvey as Prefect

Hilary Farr as Zoe

Pamela Green as Anne-Marie

Elaine Baillie as Annabelle

Michael Ripper as Sewerman