David Joel Barrera (born December 28, 1968) is an American actor. He is best known for his role as Gunnery Sgt. Ray ‘Casey Kasem’ Griego in Generation Kill. He has appeared in television series including Grimm, Heroes, CSI: Miami, Boston Legal, Medium, Nip/Tuck, NYPD Blue, Murder One, Without a Trace, The West Wing, The Big Bang Theory and 24 for which he got nominated for an ALMA Award. (Wikipedia)
