VIDEO : Nathan Fillion To Appear On 'Modern Family'

Nathan Fillion arrives at the American Music Awards at the Nokia Theatre L.A. He might be done with "Castle," but Nathan Fillion has other plans for the new TV season. Fillion will appear next season in a multiple-episode arc on "Modern Family," executive producer Steve Levitan announced Thursday at the Television Critics Association summer press tour. Fillion play a weatherman with the dubious stage name Rainer Shine, and his guest spot will last at least three episodes.