Jonathan Daniel "Jon" Hamm (born March 10, 1971) is an American actor whose work has been primarily in television roles. For much of the mid-1990s, he lived in Los Angeles as a struggling, unemployed actor. He appeared in multiple television series roles, including Providence, The Division, What About Brian, and Related. In 2000 he made his feature film debut in Clint Eastwood's space adventure Space Cowboys. The following year, Hamm appeared in the independent comedy Kissing Jessica Stein (2001) in a supporting role.
