Actor

David Howard Thornton

8 credited titles on WatchWise

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 in one minute

Upcoming

The Dead Place

Releasing 2026

Strongest genre

Horror

$6.5M · 100% hit rate

Biggest hit

Terrifier 2

$16M

Standout efficiency

63.3x

Terrifier 2 · gross ÷ budget

Commercial performance

Associated lifetime gross

$6.9M

Combined reported budget

$312K

Gross / budget

22.2x

Bankability Index

67 / 100

All figures are associated, not attributed — box-office numbers are sourced from TMDB and Wikipedia (reused under CC BY-SA), shown in US$, and weighted by billing prominence. Coverage varies by title; figures are estimates, not audited trade data.