Harry Shannon
- The World of Tomorrow
1984 Pop Middleton (archive footage)
- Gypsy
1962 Grandpa
- Wild in the Country
1961 Sam Tyler (uncredited)
- Summer and Smoke
1961 Dr. Burke (uncredited)
- Yellowstone Kelly
1959 Captain of the Far West (uncredited)
- Touch of Evil
1958 Chief Gould
- Man or Gun
1958 Justin Corley
- The Buccaneer
1958 Tom Carruthers - Captain of the Corinthian
- The Lonely Man
1957 Dr. Fisher
- Hell's Crossroads
1957 Clay Ford
- Duel at Apache Wells
1957 Wayne Shattuck
- Written on the Wind
1956 Hoak Wayne
- Come Next Spring
1956 Mr. Totter
- The Peacemaker
1956 Drunken Cowpuncher
- At Gunpoint
1955 Marshal Pete MacKay
- The Marauders
1955 John Rutherford
- The Violent Men
1955 Purdue
- The Tall Men
1955 Sam
- Witness to Murder
1954 Captain Donnelly
- Rails Into Laramie
1954 Judge Pierce
- Phantom Stallion
1954 Michael Reilly
- Executive Suite
1954 Ed Benedeck
- Cry of the Hunted
1953 Sheriff Brown
- Kansas Pacific
1953 Smokestack the Train Engineer
- Jack Slade
1953 Tom Carter
- Roar of the Crowd
1953 Sam 'Pop' Tracy
- High Noon
1952 Cooper
- Flesh and Fury
1952 Mike Callan
- Lure of the Wilderness
1952 Pat McGowan
- The Lemon Drop Kid
1951 John (Policeman)
- The Scarf
1951 Asylum Warden Anderson
- Al Jennings of Oklahoma
1951 Fred Salter
- Blue Blood
1951 Mr. Buchanan
- Pride of Maryland
1951 Walter Shannon
- Where Danger Lives
1950 Dr. Maynard
- The Killer That Stalked New York
1950 Police Officer Houlihan
- The Underworld Story
1950 George Parker
- The Jackie Robinson Story
1950 Charlie
- Hunt the Man Down
1950 Wallace Bennett
- Singing Guns
1950 Judge Waller
- Curtain Call at Cactus Creek
1950 Clay
- The Flying Missile
1950 Vice Admiral Williams
- Three Little Words
1950 Clanahan
- The Gunfighter
1950 Chuck (uncredited)
- Cow Town
1950 Sandy Reeves
- The Sound of Fury
1950 Mr. Yaeger
- Tarnished
1950 Kelsey Bunker
- Mr. Soft Touch
1949 Police Sergeant Garrett
- Tulsa
1949 Nelse Lansing
- Mary Ryan, Detective
1949 Sawyer
- Rustlers
1949 Sheriff Harmon
- Champion
1949 Lew
- My Girl Tisa
1948
- Mr. Blandings Builds His Dream House
1948 Tesander
- Fighting Father Dunne
1948 Thomas Lee
- Big Town Scandal
1948 Police Captain Henry (uncredited)
- Feudin', Fussin' and A-Fightin'
1948 Chauncey
- The Lady from Shanghai
1947 Cab Driver
- The Red House
1947 Dr. Jonathan Byrne
- Nora Prentiss
1947 Police Lieutenant
- The Devil Thumbs a Ride
1947 Detective Owens, San Diego Police
- The Farmer's Daughter
1947 Mr. Holstrom
- The Invisible Wall
1947 Det. Capt. R.W. Davis
- Exposed
1947 Severance
- Time Out of Mind
1947 Capt. Rogers
- Dangerous Years
1947 Judge Raymond
- Night Editor
1946 Capt. Lawrence
- The Last Crooked Mile
1946 Police Lieutenant Blake
- San Quentin
1946 Warden Kelly
- I Ring Doorbells
1946 Shannon
- Crack-Up
1946 Cop (Uncredited)
- Canyon Passage
1946 Henry McLane (uncredited)
- Crime, Inc.
1945 Police Commissioner Collins
- Captain Eddie
1945 Simmons
- Pride of the Marines
1945 Uncle Ralph
- When the Lights Go On Again
1944 Tom Cary
- The Yellow Rose of Texas
1944 Sam Weston
- The Mummy's Ghost
1944 Sheriff Elwood
- Song of Texas
1943 Sam Bennett
- Idaho
1943 Judge John Grey
- True to Life
1943 Mr. Mason
- The Powers Girl
1943 Mr. Hendricks
- Alaska Highway
1943 John 'Pop' Ormsby
- Someone to Remember
1943 Tom Gibbons
- In Old Oklahoma
1943 Charlie Witherspoon
- Headin' for God's Country
1943 Albert Ness
- This Gun for Hire
1942 Steve Finnerty
- The Affairs of Jimmy Valentine
1942 Pinky Dolan
- Mrs. Wiggs of the Cabbage Patch
1942 Mr. Tim Wiggs
- Once Upon a Honeymoon
1942 Ed Cumberland
- In Old California
1942 Mr. Carlin
- The Falcon Takes Over
1942 Detective Grimes (Uncredited)
- The Lady Is Willing
1942 Barnes
- The Big Street
1942 Florida Doctor (uncredited)
- The Mad Martindales
1942 Policeman
- Citizen Kane
1941 Jim Kane
- The Saint In Palm Springs
1941 Chief R.L. Graves
- Hold Back the Dawn
1941 American Immigration Official (uncredited)
- City of Chance
1940 Passline
- Tugboat Annie Sails Again
1940 Capt. Mahoney
- Sailor's Lady
1940 Father McGann
- Parole Fixer
1940 Randall
- Young Tom Edison
1940 Army Captain Brackett
- Too Many Girls
1940 Mr. Casey
- Gambling on the High Seas
1940 Ed, Chief of Police
- Tear Gas Squad
1940 Lieutenant Sullivan
- One Crowded Night
1940 McDermott
- The Girl from Avenue A
1940 Timson
- Alibi Mark
1937 Railroad Detective
- Shake, Mr. Shakespeare
1936 Macbeth
- Smoked Hams
1934 The Landlord
- No More West
1934 Bank Robber
- Wrongorilla
1933 Grogan
- Take a Chance
1933 Bartender
- Close Relations
1933 Harry Wart
- The Campus Mystery
1932 Police Sergeant
- Heads Up
1930 Capt. Denny
- Sympathy
1929 Larry
- Faint Heart
1929 Dynamite Dan
