Zack is a fictional character portrayed by John Lacy in the TV series Grey's Anatomy.
In the first episode they appeared in, titled These Arms of Mine (season 7), they were 45 years old.
They appear in 1 episodes out of a total of 430 aired so far
Episodes1
These Arms of Mine
episode S7.E6 october 2010A documentary film crew visits the hospital six months after the shooting to document the road to recovery for doctors and patients. The camera lenses follow Derek, Owen, Mark & Callie as they ambitiously perform a rare arm transplant surgery, Meredith helps Cristina put on a brave face for the cameras, and Bailey's patient, Mary, returns for her surgery -- which marks the first time they've all seen of each other since that fateful day.