Jacques Cottin was a French costume designer whose films included "Jour de fête" (1949), "Mon oncle" (1958) and "Playtime" (1967), all for comic Jacques Tati. In 1970 he had a cameo in François Truffaut's "Bed and Board", playing the character of Monsieur Hulot, made famous by Tati. Wikipedia
The definitive Wikipedia entry for Jacques Cottin. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Jacques_Cottin