Jean Gabin as Count Enguerand de Montignac,aka 'Legrain'

Louis de Funès as Félicien Mézeray

Dominique Davray as Suzanne Mézeray

Paul Mercey as Pellot

Yves Barsacq as Postman

Henri Virlogeux as Dubois, tax collector

Hubert Deschamps as Professor Mortemont

Jean-Pierre Darras as Lucien, postman

Patrick Préjean as Detective #1

Joe Warfield as Larsen

Donald von Kurtz as Smith

Ibrahim Seck as Valet of Mézeray / Butler

Pierre Maguelon as Detective #1

Pierre Tornade as Brigadier

Lyne Chardonnet as Valérie Mézeray

Pierre Guéant as Richard Mézeray

Michel Tureau as TV director

Michel Barbey as Pilot of the helicopter

Jacques Richard as Castle pillager

Jackie Blanchot as Pillager #1

Jack Bérard as Pillager #3

Pierre Mirat as Minister

Renate Birgo as Assistant TV director

Danielle Durou as Justine Pellot

Micheline Luccioni as Innkeeper

Bernard Mongourdin as

Max-Jean Fournel as Chauffeur