Character Fat Man Average age: 37 years Wikipedia: Fat Man (link not verified) 1968 ◢ Played by Gertan Klauber once on Television in '1968 BBC TV'. 14 Oct 1968:'The Boscombe Valley Mystery' 2005 ▷ Played by Larry Weissman once on Television in 'House MD'. 13 Dec 2005:'Deception'