Louis de Funès as Ange Galopin, creditor who wants to recover the money

Francis Blanche as William Foster Valmorin, American

Pierre Dudan as Pierre Valmorin, Swiss composer

Jean Richard as Jérôme Valmorin, explorer

Robert Manuel as Luigi Valmorin aka 'Valmorino'

Mireille Perrey as Maman

Mario David as Masseur

Mathilde Casadesus as Mathilde Rouet, née Valmorin

Karine Jansen as Denise

Nicky Valor as Ava Spider

Françoise Béguin as Arielle

Habib Benglia as Hannibal Valmorin

Jean-Paul Rouland as Doctor Schuster

Léonce Corne as Maître Meyer

Max Elloy as Simpson, Pierre's butler

Harry-Max as Commissioner

Pierre Derome as S.B. Smith, Scotsman

Henri Lauriac as William Henry Donavan

Georges Caspari as

Sam Guichard as

Raymond Gil as

Roger Millot as

Jean Mejean as

Fred O'Beck as

Denis Michel as

Pierre Laurent as

Tapponnier as

Adrien Nicati as

Bob Genillard as

Jean Sivry as

Gertrude Germain as

Jacqueline Hopstein as Radiology nurse

Michel Isella as Jojo

Marie-Pierre Casey as Accomplice nurse

Pierre Duncan as Prison guard

Guy Nelson as Singer Tony Valmin

Noël Roquevert as Maître Albert Leboîteux