Character Name : Eugène Ballanchon, scientific researcher, single

Original Name : Jean Lefebvre

Gender : Male

Character Name : Régine, Mr. Beauchard's spy

Original Name : Maria Latour

Gender : Female

Character Name : Mr. Beauchard, executive secretary linked to a gang

Original Name : Bernard Blier

Gender : Male

Character Name : Mr. Granger, director of the scientific laboratory

Original Name : Michel Serrault

Gender : Male

Character Name : DST inspector

Original Name : Pierre Tornade

Gender : Male

Character Name : Father Ballanchon

Original Name : Pierre Brasseur

Gender : Male

Character Name : Mrs. Ballanchon, Eugène's mother

Original Name : Margo Lion

Gender : Female

Character Name : Merchant, spy in the laboratory

Original Name : Robert Dalban

Gender : Male

Character Name : Mario

Original Name : Mario David

Gender : Male

Character Name : Police officer

Original Name : Paul Préboist

Gender : Male

Character Name : Scholar

Original Name : Henri Virlogeux

Gender : Male

Character Name : Baron

Original Name : André Chaumeau

Gender : Male

Character Name : DST inspector

Original Name : Jean Franval

Gender : Male

Character Name : Agent

Original Name : Paul Préboist

Gender : Male

Character Name : Fred

Original Name : Alain Janey

Gender : Male

Character Name : Baroness

Original Name : Sabine Sun

Gender : Female

Character Name : Pedestrian

Original Name : Yvon Sarray

Gender : Male

Character Name : Extra worker (uncredited)

Original Name : Max Arian

Gender : Male

Character Name : Jo (uncredited)

Original Name : André Cagnard

Gender : Male

Character Name : Actor from the western (uncredited)

Original Name : Guy Delorme

Gender : Male

Character Name : Police officer (uncredited)

Original Name : Marius Gaidon

Gender : Male

Character Name : Actor from the western (uncredited)

Original Name : Henri Guégan

Gender : Male

Character Name : Minister (uncredited)

Original Name : Jean Ozenne

Gender : Male

Character Name : Traveler (uncredited)

Original Name : Laure Paillette

Gender : Female

Character Name : Actor from the western (uncredited)

Original Name : Lionel Vitrant

Gender : Male