Adam Arkin(born August 19, 1956) is an American actor and director. His father is Oscar Award-winning actor Alan Arkin and his brother is actor Matthew Arkin. He is known for playing the role of Aaron Shutt onChicago Hope. He has been nominated for numerous awards, including aTony(Best Actor, 1991,I Hate Hamlet) as well as three primetime Emmys, four SAG Awards (Ensemble,Chicago Hope), and a DGA Award (My Louisiana Sky). Beginning in 1990, he had a recurring guest role onNorthern Exposureplaying the angry, paranoid Adam, for which he received an Emmy nomination. In 2002, Arkin won a Daytime Emmy for Outstanding Directing in a Children's Special forMy Louisiana Sky. Between 2007 and 2009, he co-starred inthe drama series Life. In 2009, he portrayed villainEthan Zobelle, a white separatist gang leader, inSons of Anarchy,and Principal Ed Gibb in8 Simple Rules(2003–2005).