He is best known for playing a caveman in a popular series of GEICO commercials. He played the part of Maurice in the short-lived Cavemen sitcom on ABC. Other credits to him are Hide (2003), for which he was the director, producer, and co-author in addition to being a cast member; parts in Sneakers and Rob Zombie's Halloween II as Uncle Seymour, The Lords of Salem and 31; and roles in TV series Flaked, Arrest and Trial, Philly, and Profiler. He appeared in the second season of Agents of S.H.I.E.L.D. as David Angar, the Marvel Cinematic Universe version of Angar the Screamer.
Description above from the Wikipedia article Jeff Daniel Phillips licensed under CC-BY-SA, full list of contributors on Wikipedia.
as Mr. Coffins
as Bearded Man
as General Craven
as Levi Reed(5 eps)
as Pirelli
as The Caveman
as Sheriff Monroe
as Self
as Herman Munster / Zombo / Shecky Von Rathbone
as Newt
as Actor (uncredited)
as Glen Hemming
as Oliver
as Hank
as Steve Larson
as Warden Virgil Harper
as Tex / Fade(11 eps)
as Delivery Man
as Storyteller
as Tenderloin(4 eps)
as Roscoe Pepper
as Frank Zappa
as Uno(1 ep)
as Sol White
as Steven
as The Foreman
as David A. Angar(1 ep)
as Herman Whitey Salvador
as Roland
as Cohort #2
as The Foreman(1 ep)
as Howard / Uncle Seymour Coffins
as Officer Berg
as Informant
as Iron Cross
as Photo Assistant(1 ep)
as Kyle (segment "The Diner")(1 ep)
as Dan Torpton(1 ep)
as Psychological Mugger
as Playtronics Perimeter Guard