Job: Substitute Headmaster for the Summer Session
Age: Unknown
Relationships: Mr. Prud'homme is generally liked by the students of the summer session. He is very relaxed and is not to strict with the rules. Except certain ones, like missing dinner.
General: Mr. Prud'homme is broad shouldered, very serious, and wore suits. Gene describes him as "He did not have the careless, almost British look of most of the Devon Masters, because he was a substitute for the summer" (Knowles 21).
Symbolism:

Mr Prud'homme reminds me of a guitar neck. His core is strong and he means well, yet he can be easily bent like the strings. Finny played him like a guitar as he squeezed his way out of getting into trouble for skipping dinner.
Personality: Mr Prud'homme seems to be very relaxed and kick back. I think that he just really wanted to enjoy the summer and make sure the boys of Devon had a good time there. Although he enforced some of the rules, there is nothing wrong with this because a world, or school in this case, without rules is chaos.
"He enforced such rules as he knew; missing dinner was one of them" (Knowles 21).With this type of personality, it was very easy for Finny to simple make up a fantastic story to avoid getting in trouble. He was not to mad at Finny simply because only Finny could pull something like that off. I think that had it been Gene, He surely would have gotten into trouble.
"Mr. Prud'homme released his breath with a sort of amazed laugh, stared at Finny for a while, and that was all there was to it" (Knowles 23).Finny knew that this was going to be the summer of a lifetime, and he was right, although he did not know it at the time.
Character Theme Tie-In: Mr. Prud'homme can tie in the theme of Conflict Resolution. There are so many conflicts in A Separate Peace and Mr. Prud'homme is in a position of authority and he can help resolve these conflicts. He starts early in the book by letting the conflict of Finny and Gene missing dinner go. This could have been a problem, yet he did not pursue it. As substitute headmaster, it's his job to resolve conflicts, find the source of them, and fix any future problems.