Jessalyn Gilsig has been added to the cast of Chicago Med as Ainsley Towne. Her character makes an appearance in the most recent episode, where she is shown as somebody from Dr. Mitch Frost's past.

Marina shared four photos, each featuring a different wedding ... Dermot Mulroney as the new Chicago Fire chief. Glee’s Jessalyn Gilsig joined the Chicago Med cast. She plays a mysterious ...