Acting
Treat Williams
Movies
- 12 Mighty Orphans2021as Amon Carter
- Dolly Parton's Christmas on the Square2020as Carl Pellam
- Confirmation2016as Ted Kennedy
- 127 Hours2010as Aron's Dad
- Front of the Class2008as Norman Cohen
- What Happens in Vegas2008as Jack Fuller Sr.
- The Deep End of the Ocean1999as Pat Cappadora
- The Substitute 2: School's Out1998as Karl Thomasson
- Deep Rising1998as John Finnegan
- The Devil's Own1997as Billy Burke
- Mulholland Falls1996as Fitzgerald
- The Late Shift1996as Michael Ovitz
- Dead Heat1988as Det. Roger Mortis
- Flashpoint1984as Ernie Wyatt
- Once Upon a Time in America1984as Jimmy O'Donnell
- Prince of the City1981as Daniel Ciello
- Hair1979as George Berger
- 19411979as Cpl. Chuck 'Stretch' Sitarski
- The Eagle Has Landed1976as Captain Clark