
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.

Zodiac
2007 · as Informant

Faster
2010 · as Cohort #2

Sneakers
1992 · as Playtronics Perimeter Guard

An American Pickle
2020 · as Actor (uncredited)

Halloween II
2009 · as Howard / Uncle Seymour Coffins

Unknown
2006 · as Iron Cross

The Lords of Salem
2013 · as Herman Whitey Salvador

3 from Hell
2019 · as Warden Virgil Harper

Mosquito
2022 · as Newt

Happy Birthday
2016 · as Frank Zappa

Elsewhere
2009 · as Officer Berg

The Munsters
2022 · as Herman Munster / Zombo / Shecky Von Rathbone

31
2016 · as Roscoe Pepper

Satanic Panic
2019 · as Steve Larson

Christmas Bloody Christmas
2022 · as Sheriff Monroe

Resurrection Road
2025 · as General Craven

Becoming
2020 · as Glen Hemming

Undercover Brother 2
2019 · as Hank