Welcome back to Gaffney, Dr. Will Halstead! Nick Gehlfuss returns to Chicago Med for its 200th episode , airing on Wednesday, October 8, and in some ways, it sounds like it will be like he never left … even though he’s not supposed to be working there as a doctor. (But he’s Will — it’s what we love about him.)

The milestone episode is just the first of a multi-episode arc — Gehlfuss can’t give an exact number — as Will comes to Chicago with Natalie’s ( Torrey DeVitto ) son for a Bears game and, of course, ends up tangled up in the medicine and drama of his former workplace.

Below, Nick Gehlfuss previews Will’s return.

How has life been treating Will since he left?

Nick Gehlfuss: I think Will has had some struggles figuring out how to bond with Owen. And the reason I’m being a l

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