Sturdy, reliable character actor Jon Hamm debuted onscreen at the turn of the millennium, with a series of key supporting roles in features including Space Cowboys (2000), Kissing Jessica Stein (2001), and Mel Gibson's We Were Soldiers (2002). He also appeared on such TV series as Providence, The Division, What About Brian, and The Unit. Hamm scored his first major lead as executive Don Draper in the AMC network's series Mad Men (2007) -- a period serial about a group of boozing, chain-smoking, and sexist advertising suits toiling away at their jobs in a Manhattan high rise, circa 1960. ~ Nathan Southern, All Movie Guide