Who is Monceau from Incident at Vichy: A Play and what is their importance?

Monceau is a Jewish actor. He is detained at Vichy. He has worked in Germany and refuses to believe the Germans are capable of burning people in furnaces because of their appreciation of the arts. He refuses to aid Leduc in his escape plan, insisting that will definitely result in punishment while he believes complicity may be rewarded with release. As a result, Monceau is the sixth prisoner to be questioned, and he is not released.