Le Fou du labo 4

Guy Delorme as Actor from the western (uncredited) Marius Gaidon as Police officer (uncredited) Michel Serrault as Mr. Granger, director of the scientific laboratory Margo Lion as Mrs. Ballanchon, Eugène's mother Robert Dalban as Merchant, spy in the laboratory André Cagnard as Jo (uncredited) Maria Latour as Régine, Mr. Beauchard's spy Bernard Blier as Mr. Beauchard, executive secretary linked to a gang Pierre Tornade as DST inspector Mario David as Mario Henri Virlogeux as Scholar Paul Préboist as Agent Sabine Sun as Baroness André Chaumeau as Baron Jean Franval as DST inspector Alain Janey as Fred Yvon Sarray as Pedestrian Henri Guégan as Actor from the western (uncredited) Jean Ozenne as Minister (uncredited) Laure Paillette as Traveler (uncredited) Lionel Vitrant as Actor from the western (uncredited) Jean Lefebvre as Eugène Ballanchon, scientific researcher, single Pierre Brasseur as Father Ballanchon

Michel Berreur Stunts Jacques Besnard Director, Producer, Writer Jean Halain Writer Claude Carliez Stunt Coordinator Jean-Marie Poiré Second Assistant Director Rico López Stunts Alain Poiré Delegated Producer René-Christian Forget Sound André Cagnard Action Director Bernard Gérard Original Music Composer