Melissa George, who plays wild, dangerous and, it would appear, curious intern Sadie on Grey’s Anatomy, says co-star T.R. Knight has been doing “beautiful work” and seems “happy” on set - despite his recent request to be written off the hit show.

“He was at work yesterday in the best mood I’ve ever seen him,” she said when interviewed by People. “We were in a scene all day together.”

Still, she gets why Knight, who’s character Dr. George O’Malley has had little screen time this season, would ask to leave the ensemble Grey’s Anatomy cast.

“He’s a great actor,” she says. “But maybe, when you have talent, you want more.”

Speaking of talent, while Grey's Anatomy was snubbed, Melissa George picked up a Golden Globe nomination for her work on HBO’s In Treatment on Thursday.

“I’m having the time of my life,” the 32-year-old Australian actress says. “It’s my first big nomination in this country. I just can’t believe it.”

As for Mer's old friend Sadie, who’s had some shocking scenes (cutting herself so the other interns can practice sewing her up, hitting on Sara Ramirez’s Callie Torres over slides of broken bones), George says her days at Seattle Grace are numbered.

“I think I’m going to do 8 [episodes] and that’s it,” she says. “We’ll see.”

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.