The 1997 TV movie Soul Mates, starring Raver, is shown by market researchers at Television Preview. Raver joined Season 6 of Grey's Anatomy in a recurring role as Dr. Teddy Altman, a cardiothoracic surgeon brought in by Dr. Owen Hunt, who served with her in Iraq. She made her on-screen debut on November 12. It was announced on January 4, 2010 that Raver had become a series regular on the show. On May 18, 2012, Grey's Anatomy creator, Shonda Rhimes, announced that Raver had decided to leave Grey's Anatomy after three seasons, "I know this season’s finale had some surprises for viewers and the exit of Kim Raver was one of the big ones. But Kim’s series option was up and she was ready to give Teddy Altman a much-needed vacation. It’s been a pleasure working with someone as talented and funny and kind as Kim; everyone is going to miss her terribly. I like to imagine that Teddy is still out there in the Grey’s Anatomy universe, running Army Medical Command and building a new life." When the news of her departure was released, Raver wrote on her Twitter, "I've had one of the best times of my creative career working on Grey's with Shonda, Betsy and the best cast on Television," she wrote, adding: "I feel fortunate and grateful to have worked with such an amazing team at GA [Grey's Anatomy]. [I] am going to miss everyone!! And to the GA [Grey's Anatomy] fans, you guys rock! I am sure S9 [season nine] will be great!