Paul Meurisse as Commander Théobald Dromard, aka 'Le Monocle'

Marcel Dalio as Elie Mayeriftsky

Olivier Despax as Frédéric

Edward Meeks as Major Sidney

Henri Nassiet as The Colonel

Pierre Richard as Bergourian

Michel Duplaix as The Colonel's Assistant

Renée Saint-Cyr as Madame Hui

Holley Wong as Inspector Oscar Hui

Ching Liang Kwan as Li

Lily Hong-Kong as Cora

Robert Dalban as Poussin

Barbara Steele as Valérie Gasparelli

Lino Ventura as Elie's Client (uncredited)