We still have a few months to go until Season 7, but a number of Grey's Anatomy stars, past and present, can be found on the stage and on the big screen this summer.

Katherine Heigl is busy with her adopted daughter and the big screen, starring in Killers with Ashton Kutcher. Katherine will also be filming One For The Money next month.

Meanwhile, her best friend T.R. Knight is invading Broadway.

T.R., whose Grey's Anatomy character perished in the Season 5 finale, starred in a production of Parade last year, and now will be in David Mamet's A Life in the Theatre.

He will appear opposite Patrick Stewart in the production that will begin previews in September at the Gerald Schoenfeld Theatre. The official opening will be in October.

Meanwhile, a current Grey's Anatomy cast member, Kim Raver, is starring in the Lifetime movie Bond of Silence based on a true story of a mother who made headlines.

In the film Kim plays a woman who forgives the man who killed her husband. The actress extensively researched and toured to increase people's awareness on violence.

Finally, Patrick Dempsey is attached to star in Tom's Dad, a coming-of-age film written by New York playwright Marty Casella, with a story unfolding in 1962 Las Vegas.

In the film, a successful character actor and nightclub performer struggles to keep up with changing comedy styles as his estranged son appears to complicate matters.

NOTE: If we've missed anyone, let us know and we'll add them!

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