Kevin McKidd has joined the cast of ABC's popular drama "Grey's Anatomy." McKidd first appeared as Major Owen Hunt in this season's premiere episode of "Grey's Anatomy," titled "Dream a Little Dream of Me." Hunt has joined the staff of Seattle Grace Hospital as the head of trauma surgery, after serving as a top military field surgeon in Iraq.

An established star of film, television and theatre, the Scottish actor has made a name for himself playing such varied roles as a doomed drug addict in "Trainspotting," a brooding Caesar-era soldier in HBO's "Rome" and a time-traveling journalist in last year's NBC drama, "Journeyman." McKidd recently co-starred alongside his "Grey's Anatomy" co-star, Patrick Dempsey, and Michelle Monaghan in the 2008 film romantic comedy, "Made of Honor."