Jean Keraudy
Jean Keraudy was the stage name of Roland Barbat. He was one of five inmates involved in a 1947 escape attempt from France's La Santé Prison.
He served as the inspiration for the character of Roland Darbant in José Giovanni's 1957 novel The Hole (French: Le Trou). The two met while cellmates at La Santé.
In the 1960 film production of The Hole, director Jacques Becker cast him to play Darbant.
He died in 2001.