We've got exciting Grey's Anatomy guest star news, especially for you Ally McBeal and Numb3rs fans.. so go on, check out the spoilers!
Peter Macnicol, best known as litigator John Cage on Ally Mcbeal and Dr. Larry Fleinhardt on Numb3rs, will be guest starring on Grey's Anatomy as a pediatrics attending named Dr. Stark. He will be working closely with Dr. Alex Karev (Justin Chambers).
Expect to see Macnicol on two upcoming Grey's Anatomy episodes during sweeps!
Source: TV Guide