John Candy as Augie Morosco

Jim Belushi as Neil Schwary

Cybill Shepherd as Marilyn Schwary

Sean Young as Phoebe

Richard Lewis as Julian Peters

Ornella Muti as Elena Morosco

Giancarlo Giannini as Inspector Bonnard

George Hamilton as Alfonso de la Pena

Roberto Sbaratto as Detective Toussaint

Joss Ackland as Hercules Popodopoulos

Ann Way as Housekeeper

Geoffrey Andrews as Butler

Caterina Boratto as Madame de Senneville

Elsa Martinelli as Carla the Agent

Riccardo Parisio Perrotti as Customs Officer

Nino Richelmy as Customs Officer

Maria de Candia as Witness

Giuseppe Perruccio as Policeman

Alessandro Maria Amen as Porter

Franco Angrisano as Train Passenger

Georges Carlo as Hotel de Paris Concierge

Benedetto Fanna as Hotel de Paris Room Waiter

Christian Bianchi as Casino Waiter

Marco Martinozzi as Casino Waiter

Charles Dubourgeot as Casino Employee

Eugene Levy as Casino Cashier (uncredited)

Erminio Bianchi Fasani as Policeman (uncredited)