Which actor played Dr. Mark Sloan?

Eric Dane played Dr. Mark Sloan on Grey's Anatomy. Mark Sloan is a renowned plastic surgeon whose arrival at Seattle Grace immediately creates personal and professional tension, particularly with Derek Shepherd and Addison Montgomery.

The character first appears near the end of the second season and becomes a series regular in season 3. Within the story, Mark is Derek's former best friend, but their friendship was badly damaged after Mark had an affair with Derek's wife, Addison. At the hospital, Mark earns the nickname “McSteamy,” complementing Derek's “McDreamy” nickname.

Eric Dane portrayed Mark through the character's death in season 9, while also appearing in the related spin-off Private Practice. Mark's legacy continues through his daughter Sloan Riley and his close relationship with Jackson Avery, who later becomes a prominent plastic surgeon. Chyler Leigh played Lexie Grey, Jeffrey Dean Morgan played Denny Duquette, and Patrick Dempsey played Derek Shepherd, making all three tempting but incorrect alternatives.