| Route 66 | 1960 | Harry Fenton | TV Show |
| Never Steal Anything Small | 1959 | O. K. Merritt | Movie |
| Bourbon Street Beat | 1959 | George Talbot | TV Show |
| Play of the Week | 1959 | Georges | TV Show |
| Sunday Showcase | 1959 | Mike Crowley | TV Show |
| The Alaskans | 1959 | Tim Carstairs | TV Show |
| The Twilight Zone | 1959 | Bartender | TV Show |
| New York Confidential | 1959 | Canelli | TV Show |
| 77 Sunset Strip | 1958 | Ed Silva | TV Show |
| Bronco | 1958 | Marshal Tom Merrick | TV Show |
| Naked City | 1958 | Lt. Mike Parker / Det Lt. Michael 'Mike' Parker / Lt. Michael 'Mike' Parker / ... | TV Show |
| Beau James | 1957 | Prosecutor | Movie |
| The Delicate Delinquent | 1957 | Police Captain Riley | Movie |
| Sugarfoot | 1957 | Cornelius Cameron | TV Show |
| Suspicion | 1957 | Captain Grogan | TV Show |
| Joe & Mabel | 1956 | | TV Show |
| Blackboard Jungle | 1955 | Detective | Movie |
| My Sister Eileen | 1955 | Police Officer Lonigan | Movie |
| Texas Lady | 1955 | Stringer Winfield | Movie |
| The 20th Century-Fox Hour | 1955 | Rick Vega | TV Show |
| The Phil Silvers Show | 1955 | Detective Sullivan / Pappy Morgan | TV Show |
| Damon Runyon Theater | 1955 | Swifty Stone | TV Show |
| I Spy | 1955 | Ballard | TV Show |
| Star Tonight | 1955 | Tin Roof | TV Show |
| Undercurrent | 1955 | Lt. Harmon | TV Show |
| Susan Slept Here | 1954 | Sergeant Monty Maizel | Movie |
| Climax! | 1954 | Detective | TV Show |
| Father Knows Best | 1954 | Bick Norton | TV Show |
| The Lone Wolf | 1954 | Detective Stillman | TV Show |
| Waterfront | 1954 | Max Hodge | TV Show |
| Duffy of San Quentin | 1954 | Pierson | Movie |
| Abbott and Costello Go to Mars | 1953 | Mugsy | Movie |
| Make Room for Daddy | 1953 | Horace | TV Show |
| You Are There | 1953 | Max Hart | TV Show |
| Fast Company | 1953 | 'Two Pair' Buford | Movie |
| Man in the Dark | 1953 | Arnie | Movie |
| The Motorola Television Hour | 1953 | | TV Show |
| Ponds Theater | 1953 | | TV Show |
| Champ for a Day | 1953 | Sam Benton | Movie |
| Four Star Playhouse | 1952 | Chick | TV Show |
| Our Miss Brooks | 1952 | Joe Phillips | TV Show |
| The Ford Television Theatre | 1952 | Lieutenant John Harmon / Gibson / Lieutenant Waldo / ... | TV Show |
| Detective Story | 1951 | Lt. Monaghan | Movie |
| Schlitz Playhouse | 1951 | | TV Show |
| Tales of Tomorrow | 1951 | Lieutenant Max Winters | TV Show |
| The Red Skelton Hour | 1951 | Member of Bar Association | TV Show |
| Crime Syndicated | 1951 | | TV Show |
| Not for Publication | 1951 | | TV Show |
| Lux Video Theatre | 1950 | Capt. Hodges | TV Show |
| Robert Montgomery Presents | 1950 | | TV Show |
| Treasury Men in Action | 1950 | Joe | TV Show |
| Star Time | 1950 | | TV Show |
| Martin Kane | 1949 | Capt. Willis | TV Show |
| The Return of October | 1948 | Big Louie (uncredited) | Movie |
| Studio One in Hollywood | 1948 | Giant Rooter | TV Show |
| Smart Woman | 1948 | Lefty (uncredited) | Movie |
| Joe Palooka in Fighting Mad | 1948 | Looie | Movie |
| Waterfront at Midnight | 1948 | Hank Bremmer | Movie |
| 13 Rue Madeleine | 1947 | Burglary Instructor (scenes deleted) | Movie |
| Lights Out | 1946 | | TV Show |
| Roger Touhy, Gangster | 1944 | Maxie Sharkey (uncredited) | Movie |
| The Navy Way | 1944 | Sailor Saxon (uncredited) | Movie |
| Timber Queen | 1944 | Rodney | Movie |
| Stage Door Canteen | 1943 | Horace MacMahon (as Horace MacMahon) | Movie |
| Dangerous Blondes | 1943 | Hoodlum (uncredited) | Movie |
| Good Luck, Mr. Yates | 1943 | Truck Driver (uncredited) | Movie |
| Jail House Blues | 1942 | Swifty | Movie |
| Birth of the Blues | 1941 | Wolf (as Horace MacMahon) | Movie |
| Come Live with Me | 1941 | Taxi Driver (as Horace MacMahon) | Movie |
| Lady Scarface | 1941 | Mullen (as Horace MacMahon) | Movie |
| Buy Me That Town | 1941 | Fingers Flint | Movie |
| Dr. Kildare's Wedding Day | 1941 | Jarod 'Foghorn' Murphy (uncredited) | Movie |
| Rookies on Parade | 1941 | Tiger Brannigan | Movie |
| The Stork Pays Off | 1941 | 'Ears-to-the-Ground' Hinkle | Movie |
| Dr. Kildare's Strange Case | 1940 | J. Harold 'Fog Horn' Murphy (as Horace MacMahon) | Movie |
| Melody Ranch | 1940 | Bud Wildhack (as Horace MacMahon) | Movie |
| My Favorite Wife | 1940 | Truck Driver Giving Lift to Ellen (uncredited) | Movie |
| Dr. Kildare Goes Home | 1940 | Foghorn Murphy (uncredited) | Movie |
| Dr. Kildare's Crisis | 1940 | Foghorn Murphy (as Horace MacMahon) | Movie |
| Gangs of Chicago | 1940 | Cry-Baby | Movie |
| I Can't Give You Anything But Love, Baby | 1940 | Bugs | Movie |
| Margie | 1940 | Detective | Movie |
| Oh Johnny, How You Can Love | 1940 | 'Lefty' Hodges - Bank Robber | Movie |
| The Ghost Comes Home | 1940 | Dave - the Nightclub Manager (uncredited) | Movie |
| The Marines Fly High | 1940 | Sgt. Monk O'Hara | Movie |
| We Who Are Young | 1940 | Foreman (as Horace MacMahon) | Movie |
| The Bride Wore Crutches | 1940 | Brains | Movie |
| The Leather Pushers | 1940 | Slugger Mears | Movie |
| Millionaires in Prison | 1940 | Sylvester Odgen 'SOS' Schofield (as Horace MacMahon) | Movie |
| The Golden Fleecing | 1940 | Process Server (uncredited) | Movie |
| Another Thin Man | 1939 | MacFay's Chauffeur (uncredited) | Movie |
| Bachelor Mother | 1939 | Dance Floor Official (uncredited) | Movie |
| Calling Dr. Kildare | 1939 | Fog Horn - Taxi Driver (uncredited) | Movie |
| Rose of Washington Square | 1939 | Irving (as Horace MacMahon) | Movie |
| 6,000 Enemies | 1939 | Prisoner Boxcar (uncredited) | Movie |
| Sabotage | 1939 | Art Kruger (as Horace MacMahon) | Movie |
| Sergeant Madden | 1939 | Philadelphia (as Horace MacMahon) | Movie |
| That's Right - You're Wrong | 1939 | Hood (uncredited) | Movie |
| The Gracie Allen Murder Case | 1939 | Gus (uncredited) | Movie |
| Big Town Czar | 1939 | Punchy | Movie |
| For Love or Money | 1939 | Dead Eyes | Movie |
| I Was a Convict | 1939 | Missouri Smith | Movie |
| Quick Millions | 1939 | Floyd 'Bat' Douglas | Movie |
| Laugh It Off | 1939 | Phil Ferrranti | Movie |
| Pirates of the Skies | 1939 | Henchman Artie (uncredited) | Movie |
| Pride of the Navy | 1939 | Gloomey Kelly | Movie |
| She Married a Cop | 1939 | Joe Nash | Movie |
| Marie Antoinette | 1938 | Rabblerouser (uncredited) | Movie |
| The Crowd Roars | 1938 | Rocky Simpson (uncredited) | Movie |
| Broadway Musketeers | 1938 | Gurk, Vince's Henchman (as Horace MacMahon) | Movie |
| Fast Company | 1938 | Danny Scolado (as Horace MacMahon) | Movie |
| I Am the Law | 1938 | Prisoner (uncredited) | Movie |
| King of the Newsboys | 1938 | Lockjaw | Movie |
| Newsboys' Home | 1938 | Bartsch | Movie |
| When G-Men Step In | 1938 | Jennings | Movie |
| Come Across | 1938 | Harry 'Sheep' Bonns - Wounded Gang Member (uncredited) | Short Film |
| Federal Man-Hunt | 1938 | Snuffy Deegan | Movie |
| Ladies in Distress | 1938 | 2nd Thug | Movie |
| Secrets of a Nurse | 1938 | Larry Carson | Movie |
| Wanted by the Police | 1938 | Russo's Chief Henchman (unconfirmed) | Movie |
| Bad Guy | 1937 | Malone the Informer (uncredited) | Movie |
| Kid Galahad | 1937 | Reporter at Press Conference (uncredited) | Movie |
| The Last Gangster | 1937 | Limpy (uncredited) | Movie |
| Exclusive | 1937 | Beak McArdle | Movie |
| Hard to Hold | 1937 | LaRue | Movie |
| Navy Blues | 1937 | Gateleg (as Horace MacMahon) | Movie |
| Public Wedding | 1937 | Reporter (as Horace MacMahon) | Movie |
| The Wrong Road | 1937 | Blackie Clayton (as Horace MacMahon) | Movie |
| They Gave Him a Gun | 1937 | Prison Inmate (uncredited) | Movie |
| A Girl with Ideas | 1937 | Al | Movie |
| Tenth Avenue Kid | 1937 | Max Hooker | Movie |
| Soak the Poor | 1937 | Hood (uncredited) | Short Film |
| Bulldog Edition | 1936 | Horace Boyd (uncredited) | Movie |
| The Officer's Mess | 1935 | Soldier (uncredited) | Short Film |
| Serves You Right | 1935 | One-armed Man (uncredited) | Short Film |
