Denis Leroy Arndt (February 23, 1939 – March 25, 2025) was an American actor, best known for his starring role as Alex Priest in the play Heisenberg for which he earned a 2017 Tony Award nomination for Best Actor in a Play.

Filmography

• 2023Do Over — Lou
• The Good Fight — Ron
• 2014Dolphin Tale 2 — Dennis
• How to Get Away with Murder — Justice Strickland
• Past Life — Henry
• 2010Shuffle — Big boss
• 2006Bandidas — Ashe
• 2006Behind Enemy Lines II: Axis of Evil — CIA Director Weylon Armitage
• Vanished — Senator Eugene Collins
• Grey's Anatomy — Colonel Daniel Robbins
• 2005Last Best Chance — Nathan Sheldon
• Supernatural — Father Reynolds
• 2004Anacondas: The Hunt for the Blood Orchid — CEO
• Boston Legal — A.D.A. Joshua Wendt
• 2004Sniper 3 — William Avery
• 2003S.W.A.T. — Sgt. Howard
• 2002Dead Heat — Ivan Barnes
• 2002Undisputed — Warden Lipscom
• 24 — Don Ashton
• 2000Blast — Sheriff
• Boston Public — A.D.A. Roland Hill
• CSI: Crime Scene Investigation — Larry Maddox
• The District — Owen Mitchell
• Family Law — Szabo
• Get Real — Stewart Green
• Providence — Dr. Bill Augustine
• Time of Your Life
• 1998Blackout Effect — Frank Wyatt
• 1998Max Q: Emergency Landing — Don Mitchum
• Ally McBeal — Michael Mannix
• 1997Asteroid — President
• 1997Metro — Capt. Frank Solis
• 1997NightScream — Ray Ordwell
• 1997Payback — Neil Stanfill
• The Practice — Roland Hill, A.A.G. Quentin Reynolds, Defense Attorney Robertson
• 1996The Beast — Osborne Manning
• The Burning Zone
• The Pretender — Nick Avani
• 1995How to Make an American Quilt — James
• JAG — Richard La Porte
• 1995The Return of Hunter: Everyone Walks in L.A. — Frank Battaglia
• 1994Amelia Earhart: The Final Flight — Joseph Laughlin
• Chicago Hope — Jason Sollers
• 1994Tears and Laughter: The Joan and Melissa Rivers Story — Jerry Werner
• Touched by an Angel — Darrell
• 1993Boy Meets Girl — Ted Jordan
• Lois & Clark: The New Adventures of Superman — Dr. Sam Lane
• seaQuest DSV — Navy Quartermaster Bickle
• 1992Basic Instinct — Lieutenant Walker
• Bodies of Evidence — Harris Devlin
• 1992Condition: Critical — Dr. Austin DeGroose
• Cruel Doubt — Leith Von Stein
• Picket Fences — Franklin Dell
• Herman's Head — Russell Boswell
• 1991One Special Victory — Jack Arner
• Judith Krantz's Till We Meet Again
• Life Goes On
• Mancuso, F.B.I.
• Annie McGuire
• 1988Distant Thunder — Larry
• TV 101 — Officer Checker
• The Wonder Years — Mr. Tyler
• Wiseguy
• Crime Story — Al Novak
• L.A. Law — Jack Sollers
• Murder, She Wrote — Lt. Vincent Palermo
• 1976Dawn Flight
• 1974Runaway on the Rogue River — John Peterson
• Columbo — Paul Mackey
• The Wonderful World of Disney — John Peterson

Appearances as themselves (1)

• Tony Awards — Self - Nominee