On Murder Considered as One of the Fine Arts

Jacqueline Huet

Lady Manton

Anthony Stuart

President of the gentlemen amateurs

Béatrice Altariba

Colin Drake

June Elliott

Howard Vernon

Bernard Dhéran

President of the assassination redeemers

Marcel Charvey

Léonce Corne

Robert Favart

Roland Monk

Allison Kent

Grégoire Gromoff

Virginia Rodin

Charles Moulin

Rod Calvert

Edmond Ardisson

Donald O'Brien

Eric Sinclair

Jean Horwath

Yvon Sarray

Jean-Henri Chambois

Zisca Baum

(uncredited)