Mark Sloan is a fictional character from the television series Grey's Anatomy. He is portrayed by actor Eric Dane and is known for his charm and good looks. Mark is a skilled plastic surgeon and is often referred to as "McSteamy" due to his attractive appearance and confident demeanor. Throughout the series, Mark has complex relationships with other characters, including Lexie Grey and Callie Torres. He is a close friend of Derek Shepherd, and their friendship plays a significant role in the show's dynamics. Mark's character development includes themes of love, loss, and personal growth.