Was an American film, television and stage actor best known for his performances in Going in Style, The Thing, and Dante's Peak. Description above from the Wikipedia article Charles Hallahan, licensed under CC-BY-SA, full list of contributors on Wikipedia.
The Thing
(Norris)
Body of Evidence
(Dr. McCurdy)
Vision Quest
(The Coach)
Things That Go Bump
(Chief Garrett)
Dave
(Policeman)
Dante's Peak
(Paul Dreyfus)
Silkwood
(Earl Lapin)
Fatal Beauty
(Deputy Getz)
Going in Style
(Pete)
Nightwing
(Henry)
Terror Out of the Sky
(Tibbles Sr.)
Allison Sydney Harrison
(Sgt. Beatty)
Ambushed
(Sheriff Carter)
Skag
(Fisher)
A Winner Never Quits
(Nelson Gary Sr.)
Hide in Plain Sight
(Dixon - Bartender)
Margin for Murder
(Pat Chambers)
Jack Reed: A Search for Justice
(Galvin)
Tales from the Hollywood Hills: The Old Reliable
Twilight Zone: The Movie
(Ray)
Pale Rider
(McGill)
A Death in Canaan
(Cpl. Sebastian)
The Rich Man's Wife
(Detective Dan Fredricks)
Kidco
(Richard Cessna)
The Other Victim
(Jack Berger)
The Thing: Terror Takes Shape
(Self)
P.K. and the Kid
(Bazooka)
Cyrano de Begerac
(Montfleury / Cadet)
Nails
(Bud Taylor)
Warlock: The Armageddon
(Ethan Larson)
Roswell
(Pilot MacIntire (Older))
Cast a Deadly Spell
(Det. Morris Bradbury)
Mind Rage
(Jack Stillman)
Executive Decision
(General Sarlow)
The Fan
(Coop)
Rolling Thunder
True Believer
(Vincent Dennehy)
The Pest
(Angus)
The Return of Hunter: Everyone Walks in L.A.
(Capt. Charles Devane)
The Star Chamber
(Officer Pickett (uncredited))
J. Edgar Hoover
(Joseph McCarthy)
Space Jam
(Baron's Owner (uncredited))
Chicago Story
(John Ryan)
Good Times
M*A*S*H
Trapper John, M.D.
Gargoyles
All in the Family
(Officer Harrison)
Tales of the Unexpected
(Charlie)
Wings
(Ted Cobb)
Wild Palms
(Gavin Whitehope)
Hill Street Blues
Happy Days
Hart to Hart
The Equalizer
(George Cook)
Dallas
(Harry Ritlin)
Hunter
(Charlie Devane)
Soap
(Lance)
The Waltons
Bret Maverick
The Visitor
(Sheriff)
Almost Perfect
The Paper Chase
(Ernie)
Gargoyles
(Travis Marshall (voice))
Riker
Jack's Place
Mad About You
('Sloopy' Dunbar)
The Rockford Files
(Brian)
Hawaii Five-O
(Larry Kent)
Hunter
(Capt. Charles Devane)
Law & Order
(Captain Tom O'Hara)
Lou Grant
(Chuck)
JAG
(Thomas Williams)
Great Performances
(Montfleury / Cadet)
Grace Under Fire
(Bill Davis)
Murder, She Wrote
(Barry Noble)
Coach
(University President Charles W. Kisley)
Tales of the Unexpected
(Jack Lowry)
Lou Grant
(Chet Wilke)