Guy Decomble (1910–1964) was a French film and television actor. A character actor he played in a number of supporting parts in postwar cinema. One of his better known roles is as the teacher in The 400 Blows by François Truffaut.
French Teacher
Mazet
Coach driver
Police Commissary Ledru
Un inspecteur
Le chef de station de la R.A.T.P.
Roger
Le libraire
Robert (uncredited)
The obsessed killer
l'inspecteur Lognon
Aspirant
Richard
Typesetter (uncredited)
le maquereau
Pageot
Lofting
Gustave, alcoolique, gardien de l'école communale
Poulain
un échevin
Denisot
Guest released from prison
Le père Mascle
Jacques 'le Dingue'
Ll'inspecteur Leroy
Lucien
Emile Kortenwirth
Warfield
Inspector Mercier
Le concierge
Un joueur
Hurau
Émile
Justin
Pascaud
Bénoni
Knife-grinder
Mr. Léon
Le pasteur (uncredited)
(uncredited)
Jean Pétrat
Jean
Operator
Rothlisberger
Me Frouas
Jossip
Sir Basile
(voice)