David Howard Thornton

David Howard Thornton (born November 30, 1979) is a European-American businessman, entrepreneur and actor. He is known for work in stage, film, and voice over. He is best known for his roles as Art the Clown in the Terrifier films, Grandpa Who in the 1st- 5th national tours of Dr.

Seuss' How the Grinch Stole Christmas: The Musical, the voice of Shizoku and others in the video game Invizimals: The Lost Kingdom, The Joker in the YouTube series Nightwing Escalation, and as the eponymous character in the Christmas horror parody film The Mean One.

David Howard Thornton is known for work in acting across film and television. New Release currently presents 25 verified screen credits connected to this profile.

Selected work includes American Clown (2025), Screamboat (2025), Terrifier 3 (2024), Selfie King (2022), Terrifier 2 (2022), Terrifier (2018), Bupkis (2023), The Exigency (2019). The recorded credits span 2018 to 2026, including 24 movies and 1 TV show.

The filmography below lists available titles, release years and known roles. This profile is updated as additional verified information becomes available.