Michel Piccoli. Michel Piccoli was 48 in The Infernal Trio as 'Georges Sarret'.
Romy Schneider. Romy Schneider was 35 in The Infernal Trio as 'Philomena Schmidt'.
Mascha Gonska. Mascha Gonska was 21 in The Infernal Trio as 'Catherine Schmidt'.
Philippe Brizard. Philippe Brizard was 40 in The Infernal Trio as 'Chambon'.
Jean Rigaux. Jean Rigaux was 65 in The Infernal Trio as 'Villette'.
Monica Fiorentini. Monica Fiorentini was >> in The Infernal Trio as 'Magali'.
Hubert Deschamps. Hubert Deschamps was 50 in The Infernal Trio as 'Detreuil'.
Monique Tarbès. Monique Tarbès was 40 in The Infernal Trio as 'Nurse'.
Francis Claude. Francis Claude was 68 in The Infernal Trio as 'Doktor'.
Luigi Zerbinati. Luigi Zerbinati was 64 in The Infernal Trio 
Martine Ferrière. Martine Ferrière was 47 in The Infernal Trio 
Francis Girod. Francis Girod was 29 in The Infernal Trio as 'Director, Screenplay'Andréas Winding. Andréas Winding was 46 in The Infernal Trio as 'Director of Photography'
Jacques Rouffio. Jacques Rouffio was 45 in The Infernal Trio as 'Screenplay'
Raymond Danon. Raymond Danon was 44 in The Infernal Trio as 'Producer'
Jacques Dorfmann. Jacques Dorfmann was 28 in The Infernal Trio as 'Producer'Wolfdieter von Stein. Wolfdieter von Stein was >> in The Infernal Trio as 'Producer'Claude Barrois. Claude Barrois was 33 in The Infernal Trio as 'Editor'
Ennio Morricone. Ennio Morricone was 45 in The Infernal Trio as 'Original Music Composer'Jacques Fonteray. Jacques Fonteray was 56 in The Infernal Trio as 'Costume Design'
Philippe Turlure. Philippe Turlure was >> in The Infernal Trio as 'Set Decoration'Alain Coiffier. Alain Coiffier was >> in The Infernal Trio as 'Production Manager'Solange Fasquelle. Solange Fasquelle was >> in The Infernal Trio as 'Novel'Jean-Jacques Caziot. Jean-Jacques Caziot was 37 in The Infernal Trio as 'Production Design'
Andréa Ferréol
Jean-Pierre Honoré
Renata Zamengo