 He has appeared in a number of highly acclaimed films, including "Hannah and Her Sisters", "Broadcast News", "Apollo 13" and "The Big Lebowski", and portrayed Tom Burnett in Paul Greengrass' "United 93".He starred in "" as prosecutor William Hodgman.Clemenson was born and raised in Humboldt, Iowa, the son of drug store owners Ruth Alzora (Dayton) and Ernest Arnold Clemenson.