In which film is The Dude a character?

In which film is Lloyd Christmas a character? Who played Ron Burgundy in 'Anchorman: The Legend of Ron Burgundy'? Who played Wayne Campbell in 'Wayne's World'? Who played Garth Algar in 'Wayne's World'? Who played Marge Gunderson in 'Fargo'? In which film is Marge Gunderson a character? In which film is Anton Chigurh a character? Who played Llewelyn Moss in 'No Country for Old Men'?