Gil McKinney
Mark Gilbert McKinney, known professionally as Gil McKinney, is an American film and television actor.
He is best known for playing Dr. Paul Grady on ER, Derek Bishop on Friday Night Lights, and Prince Eric in Once Upon a Time, and for being the voice and face of Jack Kelso in the video game L.A. Noire. Gil also appeared in Supernatural and its spinoff The Winchesters as Henry Winchester.