
William Patrick Muldoon III (September 27, 1968 — April 19, 2026) was an American actor of Irish and Croatian ancestry. His parents' artistic backgrounds, in painting, writing, and music, induced the same appetites in their son, as well as athletics. He played college football for the U.S.C. Trojans and has two Rose Bowl rings.

Starship Troopers
1997 · as Zander Barcalow

Stigmata
1999 · as Steven

The Comeback Trail
2020 · as Frank Pierce

Marlowe
2023 · as Richard Cavendish

Dirty Hands
2026 · as Richie Denton

Wicked
1998 · as Lawson Smith

American Satan
2017 · as SS Singer

Broken Angel
2008

Vanquish
2021 · as Agent Monroe

Finders Keepers
2014 · as Jonathan Simon

Arkansas
2020 · as Joe

Spiders
2013 · as Jason

The Second Arrival
1998 · as Jack Addison

In the Dark
2013 · as Dan Lear

Black Cat Run
1998 · as Johnny Del Grissom

Deadlock
2021 · as Mack

Project Viper
2002 · as Mike Connors

Dakota
2022 · as Sheriff Danforth