David Barrera

David Joel Barrera 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. Barrera is a graduate of Pharr-San Juan-Alamo High School in his hometown, San Juan, Texas, where he was part of the Theater Club.

The Big Bang Theory · S8, E1

The Locomotion Interruption

Leonard and Sheldon (series stars JOHNNY GALECKI and JIM PARSONS) are brilliant physicists – geniuses in the laboratory, but socially challenged everywhere else. Enter beautiful, street-smart neighbor, Penny (series star KALEY CUOCO-SWEETING), who aims to teach them a thing or two about life. Despite their on-again, off-again relationship in the past, Leonard and Penny have finally gotten engaged. Even Sheldon has found a female companion – entering into a “Relationship Agreement” with neurobiologist Amy Farrah Fowler (series star MAYIM BIALIK). In their free time, Leonard and Sheldon enjoy fantasy role-playing games with their ever-expanding universe of friends, including fellow scientists Raj (series star KUNAL NAYYAR) and Howard (series star SIMON HELBERG), and Howard's adorable microbiologist wife, Bernadette (series star MELISSA RAUCH).

David Barrera

Guest Appearances