Eric Dane played Dr. Mark Sloan, the ultra-confident plastic surgeon nicknamed “McSteamy,” on Grey’s Anatomy.

Who Mark Sloan Was on Grey’s Anatomy

  • Mark Sloan is a talented attending plastic surgeon at Seattle Grace Hospital.
  • He is introduced as Derek Shepherd’s oldest friend from New York, but also the man who had an affair with Derek’s wife, Addison, causing their major fallout.
  • His charm, good looks, and playboy reputation lead to the fan nickname “McSteamy,” paralleling Derek’s “McDreamy.”

Eric Dane’s Time on the Show

  • Eric Dane first appeared as Mark Sloan in the season 2 episode “Yesterday,” initially as a guest role.
  • Because viewers loved the character, he was promoted to series regular in season 3.
  • He played Mark from season 2 through season 9, leaving after season 8 but appearing in the first two episodes of season 9.
  • He later returned for a special guest appearance in season 17.

Iconic “McSteamy” Moment

  • One of his most famous entrances is in season 3, when Mark steps out of a bathroom/shower wearing only a towel, which became a big “watercooler” moment and cemented the “McSteamy” image.

In short: Eric Dane was Dr. Mark “McSteamy” Sloan, the charismatic, womanizing—but ultimately deeply loyal and emotionally complex—plastic surgeon and one of the most memorable characters in Grey’s Anatomy.

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