Stuart Milligan (born 10 September, 1953) is an American actor based primarily in Britain, best known for his recurring role as Adam Klaus in Jonathan Creek.He has been on British television in Crossroads playing Max Samson, Chalk and Secret Army. He also appeared in the 1985 motion picture Santa Claus: The Movie, in which he can be seen seated next to the chairman in the court room at the trial of the character BZ.