Steve Landesberg

Steve Landesberg November 23 1936 December 20 2010 was an American actor and comedian known for his role as the erudite unflappable police detective Arthur P Dietrich on the ABC sitcom Barney Miller for which he was nominated for three Emmy Awards He appeared in 124 episodes from the last episode of the 1975 season until the end of the series in 1982 Landesberg also starred in the Starz series Head Case 2007 2009 and appeared in the films Wild Hogs 2007 and Forgetting Sarah Marshall 2008 He was married to Nancy Ross from 1986 until his death they had one daughter