Il miliardo l'eredito io

Louis de Funès

Ange Galopin, creditor who wants to recover the money

Francis Blanche

William Foster Valmorin, American

Pierre Dudan

Pierre Valmorin, Swiss composer

Jean Richard

Jérôme Valmorin, explorer

Robert Manuel

Luigi Valmorin aka 'Valmorino'

Mireille Perrey

Maman

Mario David

Masseur

Mathilde Casadesus

Mathilde Rouet, née Valmorin

Karine Jansen

Denise

Nicky Valor

Ava Spider

Françoise Béguin

Arielle

Habib Benglia

Hannibal Valmorin

Jean-Paul Rouland

Doctor Schuster

Léonce Corne

Maître Meyer

Max Elloy

Simpson, Pierre's butler