Travis Willingham has a brief scene at the very begining. Too bad it isn't longer. I clipped the scene for anyone interested, and posted it up on YouTube.
See if you can catch him "Mustanging" ;)
Title: ...:: When The Light Comes On ::... Pairing: Ed/Roy Song: Can I Be Him? Artist: James Arthur
Title: :: L A T C H :: Pairing: Ed x Roy Song: Latch Artist: Sam Smith
Title: ::I'm Reacing Out.." Pairing: Ed x Roy Song: Lay Me Down Artist: Sam Smith