Vercors
Bruller, Jean Marcel Adolphe
February 26, 1902 – June 10, 1991
Paris, Seine, France
Author and artist who originally signed his work "Jean Bruller". The pseudonym "Vercors" originated as Bruller's code name with the French resistance during World War II. According to SFE3 and the French Wikipedia, he used this pseudonym for all of his narrative fiction and plays from 1942 on.