| Branded | 1950 | Hank (uncredited) | Movie |
| Broken Arrow | 1950 | Minor Role (uncredited) | Movie |
| Copper Canyon | 1950 | Bill Newton | Movie |
| Fancy Pants | 1950 | Henchman (uncredited) | Movie |
| Samson and Delilah | 1949 | Vendor (uncredited) | Movie |
| Sorrowful Jones | 1949 | Horse Player (uncredited) | Movie |
| Streets of Laredo | 1949 | Lorn's Henchman (uncredited) | Movie |
| Hazard | 1948 | Bartender (uncredited) | Movie |
| The Big Clock | 1948 | Guard (uncredited) | Movie |
| The Paleface | 1948 | Saloon Patron Restraining Joe (uncredited) | Movie |
| Whispering Smith | 1948 | Gabby Barton | Movie |
| Blaze of Noon | 1947 | Farmer (uncredited) | Movie |
| California | 1947 | Pioneer (uncredited) | Movie |
| Unconquered | 1947 | Frontiersman / Indian (uncredited) | Movie |
| Wild Harvest | 1947 | Sam (uncredited) | Movie |
| The Virginian | 1946 | Man at Bar (uncredited) | Movie |
| Two Years Before the Mast | 1946 | Bobson - Sailor (uncredited) | Movie |
| Frontier Gunlaw | 1946 | Henchman Mace (as Robert Kortman) | Movie |
| Gunning for Vengeance | 1946 | Henchman Curly (uncredited) | Movie |
| Landrush | 1946 | Henchman Sackett (uncredited) | Movie |
| Along Came Jones | 1945 | Wagon Driver (uncredited) | Movie |
| Marked for Murder | 1945 | Henchman (as Robert Kortman) | Movie |
| Stagecoach Outlaws | 1945 | Matt Brawley (as Robert Kortman) | Movie |
| Rough Ridin' Justice | 1945 | Henchman Pete (uncredited) | Movie |
| Call of the Rockies | 1944 | Henchman Watson (as Robert Kortman) | Movie |
| Forty Thieves | 1944 | Joe Garms | Movie |
| The Whispering Skull | 1944 | Henchman Joe Carter (as Robert Kortman) | Movie |
| Beneath Western Skies | 1944 | Bart Walker (uncredited) | Movie |
| Guns of the Law | 1944 | Joe Hyslop (as Robert Kortman) | Movie |
| Outlaws of Santa Fe | 1944 | Ed - Henchman | Movie |
| The Pinto Bandit | 1944 | Draw Dudley (as Robert Kortman) | Movie |
| Saddle Leather Law | 1944 | Henchman Choate (uncredited) | Movie |
| Sundown Valley | 1944 | Gorman (uncredited) | Movie |
| Wyoming Hurricane | 1944 | Henchman Vic (uncredited) | Movie |
| Lucky Cowboy | 1944 | Riley | Short Film |
| Border Patrol | 1943 | Mine Guard (uncredited) | Movie |
| Leather Burners | 1943 | Blackie - Henchman (uncredited) | Movie |
| Riders of the Rio Grande | 1943 | Zeke - Henchman (uncredited) | Movie |
| Man from Music Mountain | 1943 | Henchman (uncredited) | Movie |
| The Vigilantes Ride | 1943 | Drag - Henchman (uncredited) | Movie |
| The Avenging Rider | 1943 | Harris - Henchman | Movie |
| Black Hills Express | 1943 | Henchman Dutch | Movie |
| Days of Old Cheyenne | 1943 | Slim Boyd (as Robert Kortman) | Movie |
| Boss of Rawhide | 1943 | Henchman (uncredited) | Movie |
| California Joe | 1943 | Henchman (as Robert Kortman) | Movie |
| The Forest Rangers | 1942 | Lumberjack (uncredited) | Movie |
| Jesse James, Jr. | 1942 | Henchman Blackie Deane (uncredited) | Movie |
| Lost Canyon | 1942 | Joe | Movie |
| Thundering Hoofs | 1942 | Henchman (uncredited) | Movie |
| Bandit Ranger | 1942 | Henchman | Movie |
| The Sundown Kid | 1942 | Luke - Henchman | Movie |
| Range Rhythm | 1942 | Henchman (uncredited) | Short Film |
| Lady from Louisiana | 1941 | Lottery Thug (uncredited) | Movie |
| Sullivan's Travels | 1941 | Convict Watching Movie in Church (uncredited) | Movie |
| The Green Hornet Strikes Again! | 1941 | Gang Farmhouse Owner (uncredited) | Movie |
| The Shepherd of the Hills | 1941 | Bald Knobber (uncredited) | Movie |
| Bury Me Not on the Lone Prairie | 1941 | Barfly (uncredited) | Movie |
| Fugitive Valley | 1941 | Red Langdon | Movie |
| Rawhide Rangers | 1941 | Henchman Dirk | Movie |
| Six-Gun Gold | 1941 | Henchman (uncredited) | Movie |
| Stick to Your Guns | 1941 | Concho (uncredited) | Movie |
| Twilight on the Trail | 1941 | Kervy's Henchman & Guard (uncredited) | Movie |
| Wide Open Town | 1941 | Henchman Blackie (uncredited) | Movie |
| Death Valley Outlaws | 1941 | Indian Pete (uncredited) | Movie |
| Fighting Bill Fargo | 1941 | Henchman (uncredited) | Movie |
| Law of the Range | 1941 | Henchman in Cabin (uncredited) | Movie |
| The Lone Rider Rides On | 1941 | Henchman Dave | Movie |
| Adventures of Red Ryder | 1940 | One-Eye Chapin | Movie |
| Brigham Young | 1940 | Agitator (uncredited) | Movie |
| The Green Hornet | 1940 | George Scanlon - Ballot Stuffer [Ch. 10] (uncredited) | Movie |
| The House Across the Bay | 1940 | Prison Guard (uncredited) | Movie |
| When the Daltons Rode | 1940 | Rigby Henchman (uncredited) | Movie |
| Boss of Bullion City | 1940 | Henchman (uncredited) | Movie |
| Cherokee Strip | 1940 | Henchman (uncredited) | Movie |
| Hidden Gold | 1940 | Hideout Henchman (uncredited) | Movie |
| Law and Order | 1940 | Henchman Pete (uncredited) | Movie |
| Stagecoach War | 1940 | Outlaw at Campfire (uncredited) | Movie |
| Winners of the West | 1940 | Gorbel [Ch. 8] (uncredited) | Movie |
| Beau Geste | 1939 | Legionnaire (uncredited) | Movie |
| The Oklahoma Kid | 1939 | Juror #9 (uncredited) | Movie |
| Union Pacific | 1939 | Gentleman at Golden Spike Ceremony (uncredited) | Movie |
| Hotel Imperial | 1939 | Austrian Sergeant (uncredited) | Movie |
| The Oregon Trail | 1939 | Bartender (uncredited) | Movie |
| Renegade Trail | 1939 | Haskins (uncredited) | Movie |
| Arizona Legion | 1939 | Sergeant Clarke (uncredited) | Movie |
| Timber Stampede | 1939 | Pete Larkin - Homesteader (uncredited) | Movie |
| Oklahoma Frontier | 1939 | J. W. Saunders (as Robert Kortman) | Movie |
| Spawn of the North | 1938 | Russian Henchman (uncredited) | Movie |
| The Buccaneer | 1938 | Pirate (uncredited) | Movie |
| The Spider's Web | 1938 | Henchman-Mechanic (uncredited) | Movie |
| You Can't Take It with You | 1938 | Man (uncredited) | Movie |
| Spirit of Youth | 1938 | Tommy Bright (uncredited) | Movie |
| The Law West of Tombstone | 1938 | Charlie McQuinn (uncredited) | Movie |
| The Mysterious Rider | 1938 | Henchman (uncredited) | Movie |
| The Renegade Ranger | 1938 | Idaho (as Robert Kortman) | Movie |
| Law of the Texan | 1938 | Henchman Quinn | Movie |
| Panamint's Bad Man | 1938 | Red - Henchman (uncredited) | Movie |
| Stagecoach Days | 1938 | Barney - Lead Henchman (uncredited) | Movie |
| West of Rainbow's End | 1938 | Speck | Movie |
| Secret Agent X-9 | 1937 | 'Trader' Delaney [Chs. 7-9, 11-12] (as Robert Kortman) | Movie |
| The Luck of Roaring Camp | 1937 | Yuba Bill (as Robert Kortman) | Movie |
| The Soldier and the Lady | 1937 | Tartar (uncredited) | Movie |
| Zorro Rides Again | 1937 | Trellinger (as Robert Kortman) | Movie |
| Anything for a Thrill | 1937 | Henchman | Movie |
| Black Aces | 1937 | Wolf Whalen (as Robert Kortman) | Movie |
| Texas Trail | 1937 | Henchman Hawks (as Robert Kortman) | Movie |
| Trouble in Morocco | 1937 | Henchman (uncredited) | Movie |
| Wild West Days | 1937 | Trigger Benton (as Robert Kortman) | Movie |
| Ranger Courage | 1937 | Henchman Toady | Movie |
| The Rangers Step In | 1937 | Wes (uncredited) | Movie |
| Sandflow | 1937 | Quayle | Movie |
| Smoke Tree Range | 1937 | Henchman Paso Wells | Movie |
| Private Number | 1936 | Policeman in Raid (uncredited) | Movie |
| Robinson Crusoe of Clipper Island | 1936 | Wilson - Gang Yacht Captain (as Robert Kortman) | Movie |
| The Lonely Trail | 1936 | Captain Hays | Movie |
| The Trail of the Lonesome Pine | 1936 | Gorley Falin | Movie |
| Winds of the Wasteland | 1936 | Cherokee Joe - Henchman (as Robert Kortman) | Movie |
| Ghost-Town Gold | 1936 | Monk (Barrington's Henchman) | Movie |
| Rose of the Rancho | 1936 | Kincaid Henchman (uncredited) | Movie |
| Song of the Saddle | 1936 | Henchman (uncredited) | Movie |
| The Amazing Exploits of the Clutching Hand | 1936 | Henchman Number Six - aka Spike Harvey (uncredited) | Movie |
| The Vigilantes Are Coming | 1936 | Boris Petroff | Movie |
| On the Wrong Trek | 1936 | Gang Member in Cap (uncredited) | Short Film |
| Feud of the West | 1936 | 'Hawk' Decker | Movie |
| Heroes of the Range | 1936 | Slick (as Robert Kortman) | Movie |
| The Unknown Ranger | 1936 | Henchman Quirt | Movie |
| Romance Rides the Range | 1936 | Clem Allen (as Robert Kortman) | Movie |
| Barbary Coast | 1935 | Townsman on Pier (uncredited) | Movie |
| Lawless Range | 1935 | Tall Ranch Hand Clocking John (uncredited) | Movie |
| The Miracle Rider | 1935 | Longboat | Movie |
| Branded a Coward | 1935 | Henchman (uncredited) | Movie |
| Swifty | 1935 | Clam Givens | Movie |
| The Arizonian | 1935 | Henchman-Deputy Red Fern (uncredited) | Movie |
| The Crimson Trail | 1935 | Henchman Cal | Movie |
| The Ivory-Handled Gun | 1935 | Alf Steen | Movie |
| Wild Mustang | 1935 | Utah Evans (as Robert Kortman) | Movie |
| Bulldog Drummond Strikes Back | 1934 | Sailor (uncredited) | Movie |
| Kid Millions | 1934 | Desert Rider (uncredited) | Movie |
| Spitfire | 1934 | Sam Cleaver (uncredited) | Movie |
| Burn 'Em Up Barnes | 1934 | Henchman Frazer [Chs. 5-12] (uncredited) | Movie |
| Mystery Mountain | 1934 | Hank - Rattler Henchman | Movie |
| Sing and Like It | 1934 | Mug at Premiere (uncredited) | Movie |
| Smoking Guns | 1934 | Henchman Biff | Movie |
| When a Man Sees Red | 1934 | Henchman Spook (uncredited) | Movie |
| A Man's Game | 1934 | Kane | Movie |
| Sixteen Fathoms Deep | 1934 | Cimos - Second Henchman | Movie |
| Burn 'Em Up Barnes | 1934 | Fraser | Movie |
| Lady for a Day | 1933 | Reception Guest (uncredited) | Movie |
| The Midnight Patrol | 1933 | Tire Thief (uncredited) | Short Film |
| Laughing at Life | 1933 | Construction Worker (uncredited) | Movie |
| Phantom Thunderbolt | 1933 | One-Shot Mallory | Movie |
| Sunset Pass | 1933 | Dick | Movie |
| Terror Trail | 1933 | Tim McPherson (as Robert Kortman) | Movie |
| The Mystery Squadron | 1933 | Bracken | Movie |
| The Trail Drive | 1933 | Henchman Blake | Movie |
| The Whispering Shadow | 1933 | Jasper Slade - The Convict | Movie |
| The Fugitive | 1933 | Dutch Walton (as Robert Kortman) | Movie |
| Hold the Press | 1933 | Convict Trimble (uncredited) | Movie |
| King of the Arena | 1933 | Bargoff | Movie |
| Before Midnight | 1933 | Plainclothesman (uncredited) | Movie |
| The Fighting Code | 1933 | Henchman Carter (uncredited) | Movie |
| Rainbow Ranch | 1933 | Marvin Black (as Robert Kortman) | Movie |
| On Your Guard | 1933 | Chuck Benson | Movie |
| Island of Lost Souls | 1932 | Mr. Hogan (uncredited) | Movie |
| The Last of the Mohicans | 1932 | Magua | Movie |
| The World and the Flesh | 1932 | Revolutionary (uncredited) | Movie |
| Come On, Tarzan | 1932 | Spike - Henchman | Movie |
| Cornered | 1932 | Pete Fleming (uncredited) | Movie |
| Gold | 1932 | Henchman Without Mustache (as Robert Kortman) | Movie |
| The Night Rider | 1932 | Steve - Henchman | Movie |
| White Eagle | 1932 | Sheriff | Movie |
| The Fighting Fool | 1932 | Henchman Charley | Movie |
| Between Fighting Men | 1932 | Cowhand (uncredited) | Movie |
| The Forty-Niners | 1932 | Settler (uncredited) | Movie |
| The Pride of the Legion | 1932 | Louis | Movie |
| Ridin' for Justice | 1932 | Deputy Bob (uncredited) | Movie |
| Cimarron | 1931 | Killer (uncredited) | Movie |
| City Streets | 1931 | First Henchman (uncredited) | Movie |
| Pardon Us | 1931 | Prisoner - Tiger's Pal (uncredited) | Movie |
| Trader Horn | 1931 | | Movie |
| Beau Hunks | 1931 | New Recruit (uncredited) | Short Film |
| 24 Hours | 1931 | Dave the Slapper (uncredited) | Movie |
| Ladies of the Big House | 1931 | Inmate (uncredited) | Movie |
| The Conquering Horde | 1931 | Digger Hale | Movie |
| The Lightning Warrior | 1931 | Wells - Henchman | Movie |
| The Vanishing Legion | 1931 | Henchman Marno | Movie |
| Branded | 1931 | Tex aka Bill Saunders (uncredited) | Movie |
| The Deadline | 1931 | Lefty (uncredited) | Movie |
| The Last Parade | 1931 | One of Marino's Henchmen (uncredited) | Movie |
| Subway Express | 1931 | Guard | Movie |
| Los presidiarios | 1931 | Prisoner (uncredited) | Movie |
| The Criminal Code | 1930 | Convict Barber (uncredited) | Movie |
| The Cuckoos | 1930 | Gypsy (uncredited) | Movie |
| The Lone Defender | 1930 | Jenkins - Henchman (as Robert Kortman) | Movie |
| Women Everywhere | 1930 | Swedish Legionnaire (uncredited) | Movie |
| Bear Shooters | 1930 | Bob (uncredited) | Short Film |
| The Big Kick | 1930 | 1st Bootlegger (uncredited) | Short Film |
| The Fighting Parson | 1930 | Bandit (uncredited) | Short Film |
| La estación de gasolina | 1930 | 1st Bootlegger (uncredited) | Short Film |
| Los cazadores de osos | 1930 | Bob, bootlegger | Short Film |
| Condemned | 1929 | Prison Guard (uncredited) | Movie |
| The Black Watch | 1929 | 42nd Highlander (uncredited) | Movie |
| The Mysterious Island | 1929 | Island Stronghold Guard (uncredited) | Movie |
| The Virginian | 1929 | Rustler Who Is Shot (uncredited) | Movie |
| Devil-May-Care | 1929 | Bonapartist (uncredited) | Movie |
| Weary River | 1929 | Prison Guard (uncredited) | Movie |
| Waltzing Around | 1929 | Farmer | Short Film |
| Thrill Hunter, The | 1929 | | Short Film |
| The Lone Rider | 1929 | | Short Film |
| Range Wolf, The | 1929 | Bad Guy (uncredited) | Short Film |
| Tenderfoot Terror, A | 1929 | | Short Film |
| Perilous Paths | 1929 | | Short Film |
| Rider of the Sierras, A | 1929 | The Desperado (as Robert Kortman) | Short Film |
| Four Sons | 1928 | German Army Barber (uncredited) | Movie |
| The Divine Lady | 1928 | Sailor Upset at Rotten Food (uncredited) | Movie |
| The Noose | 1928 | Death Row Convict (uncredited) | Movie |
| Always a Gentleman | 1928 | | Short Film |
| The Big Killing | 1928 | Sixth Beagle Son | Movie |
| Fleetwing | 1928 | Auda (as Robert Kortman) | Movie |
| Sunrise | 1927 | Villager (uncredited) | Movie |
| Duck Soup | 1927 | Forest Ranger | Short Film |
| Blood Will Tell | 1927 | Carloon (as Robert Kortman) | Movie |
| Drama Deluxe | 1927 | Trackman | Short Film |
| Hills of Peril | 1927 | Red | Movie |
| Somebody's Fault | 1927 | The Electrician (as Robert Kortman) | Short Film |
| The Temptress | 1926 | Duras Henchman (uncredited) | Movie |
| The Devil Horse | 1926 | Prowling Wolf (as Robert Kortman) | Movie |
| The Eagle of the Sea | 1926 | Pirate (uncredited) | Movie |
| Honest Injun | 1926 | Black Bart | Short Film |
| The Non-Stop Bride | 1926 | | Short Film |
| Nothing Matters | 1926 | Egbert's Pal | Short Film |
| Love on the Rio Grande | 1925 | | Movie |
| Unseen Enemies | 1925 | 'Bingo' Strook | Movie |
| Below Zero | 1925 | Pierre Baptiste (as Robert Kortman) | Short Film |
| Going Great | 1925 | Coach (as Robert Kortman) | Short Film |
| Hello Goodbye | 1925 | Chief Villain | Short Film |
| Hello, Hollywood | 1925 | | Short Film |
| Spot Light | 1925 | Stage Manager (as Robert Kortman) | Short Film |
| North of 36 | 1924 | Hanson | Movie |
| The White Sheep | 1924 | Milt Tyler (as Robert Kortman) | Movie |
| The Hunchback of Notre Dame | 1923 | Hook-Hand (uncredited) | Movie |
| The Shock | 1923 | Henchman (uncredited) | Movie |
| All the Brothers Were Valiant | 1923 | Vorde | Movie |
| Scars of Jealousy | 1923 | Revenue officer (uncredited) | Movie |
| His Last Race | 1923 | Henchman (as Robert Kortman) | Movie |
| Another Man's Boots | 1922 | Sly Stevens (as Robert Kourtman) | Movie |
| Arabian Love | 1922 | Ahmed Bey (as Robert Kortman) | Movie |
| Gun Shy | 1922 | Buck Brady | Movie |
| The Lone Hand | 1922 | Curley (as Robert Kortman) | Movie |
| Travelin' on | 1922 | Gila (as Robert Kortman) | Movie |
| Wolf Pack | 1922 | The Wolf (as Robert Kortman) | Movie |
| Streak of Yellow | 1922 | | Short Film |
| Heart's Haven | 1922 | Dog Catcher (uncredited) | Movie |
| Fightin' Actor, The | 1921 | Hank Forbes (as Robert Kortman) | Short Film |
| Montana Bill | 1921 | Crooked Ranch Foreman (as Robert Korman) | Movie |
| The Whistle | 1921 | Scardon (uncredited) | Movie |
| Winners of the West | 1921 | Sioux Warrior (uncredited) | Movie |
| Western Pep | 1921 | Head of the Gang | Movie |
| Godless Men | 1920 | Seaman Speiss (as Robert Kortman) | Movie |
| Through the Wrong Door | 1919 | James (as Robert Kortman) | Movie |
| The Great Radium Mystery | 1919 | The Buzzard | Movie |
| Square Deal Sanderson | 1919 | Hired Killer (uncredited) | Movie |
| Dangerous Nan McGrew | 1919 | The Very Bad Man | Short Film |
| The Narrow Trail | 1917 | Moose Holleran (as Robert Kortman) | Movie |
| The Silent Man | 1917 | Sheriff (uncredited) | Movie |
| Cactus Nell | 1917 | Undetermined Secondary Role (as Robert Kortman) | Short Film |
| His Naughty Thought | 1917 | Cabaret Manager - Babe's Husband (as Robert Kortman) | Short Film |
| A Domestic Hound | 1917 | The Man-with-Money (as Robert Kortman) | Short Film |
| Hell's Hinges | 1916 | Rowdy Townsman (uncredited) | Movie |
| Ambrose's Rapid Rise | 1916 | The Bandit | Short Film |
| The Captive God | 1916 | Tuyos (as Robert Kortman) | Movie |
| The No-Good Guy | 1916 | 'Hair Trigger' Jo (as Robert Kortman) | Movie |
| Safety First Ambrose | 1916 | The Bad Guy | Short Film |
| Waifs, The | 1916 | Bat | Movie |
| Lieutenant Danny, U.S.A. | 1916 | Pedro Lopez (as Robert Kortman) | Movie |
| The Coward | 1915 | A Union Officer (uncredited) | Movie |
| The Disciple | 1915 | Bill Smith - Mob Leader (uncredited) | Movie |
| Cash Parrish's Pal | 1915 | Jud Ross | Short Film |
| The Ruse | 1915 | A Gangster (uncredited) | Short Film |
| The Golden Trail | 1915 | Jim Healy (as Robert Kortman) | Short Film |
| The Failure | 1915 | Stine - the Outlaw (as Robert Kortman) | Short Film |
| The Girl from the East | 1915 | Corse Hazard (as Robert Kortman) | Short Film |
| Shorty's Ranch | 1915 | Bartender (uncredited) | Short Film |
| The Strike at Centipede Mine | 1915 | Jim Foley (as Robert Kortman) | Short Film |
| $100,000 Bill, The | 1915 | Oily - the Crook (as Robert Kortman) | Short Film |
| Operator at Big Sandy, The | 1915 | Background Role (uncredited) | Short Film |
| 'Bad Buck' of Santa Ynez | 1915 | Sheriff (uncredited) | Short Film |
| Wolves of the Underworld | 1914 | Dan Kelly (as Fred Kortman) | Short Film |
| A Romance of the Sea | 1914 | The Pirate Captain (as Mr. Kortman) | Short Film |
