When you think of the typical "Grey's Anatomy" fan, a wiseguy actor with his own show on Adult Swim probably isn't what comes to mind.
Elsewhere on the casting front, TNT has signed former "Boston Legal" star Monica Potter for its pilot "Truth in Advertising."
Green will play a patient in two episodes of "Grey's Anatomy." "If you are going to get sick, Seattle Grace is the place to do it," he tells The Hollywood Reporter. "Maybe they'll call me McSicky?"
The "Grey's" guest spot will be Green's first live-action TV work since his short-lived NBC sitcom "Four Kings" two seasons ago. He voices Chris Griffin on "Family Guy" and writes, directs and does voice work on "Robot Chicken." He also recently finished work on the feature "Old Dogs," which is due for release next year.
On "Truth in Advertising," Potter will play an award-winning copywriter who joins an ad agency in Chicago. She joins Eric McCormack and Tom Cavanagh in the cast.
In addition to "Boston Legal," Potter's credits include the first "Saw" movie and "Along Came a Spider."