By Michael Ausiello
Updated October 29, 2010 at 02:30 PM EDT

Image Credit: Eric Charbonneau/Le Studio/; Ron Tom/Seattle Grace is about to experience a Code Noel: Scott Foley has booked a multi-episode arc on Grey’s Anatomy!

The Felicity (and Unit) alum will play a patient named Henry who, according series creator Shonda Rhimes, “stirs things up” with Kim Raver’s Teddy.

I know what you’re thinking: It’s Denny/Izzie all over again! Not quite, insists Rhimes. “He’s very different from Denny,” she says. “But I guess in the sense that he’s a patient who comes in and has an effect on one of our doctors, I guess that’s similar.”