| Ano | Nota | Título | Personagem |
|---|---|---|---|
| 1946 | Gilda | Thomas Langford | |
| 1946 | The Truth About Murder | Paul Marvin | |
| 1946 | Tokyo Rose | Timothy O'Brien | |
| 1945 | Club Havana | Johnny Norton (as Don Douglas) | |
| 1945 | Tarzan e as Amazonas | Andres | |
| 1945 | Czarina | Variatinsky (uncredited) | |
| 1945 | Grissly's Millions | Ellison Hayes | |
| 1945 | The Strange Mr. Gregory | John Randall | |
| 1944 | Até a Vista, Querida | Police Lt. Randall | |
| 1944 | Heavenly Days | Dr. George Gallup | |
| 1944 | Adorável Inimiga | Harolday | |
| 1944 | Show Business | Charlie Lucas (as Don Douglas) | |
| 1944 | The Falcon Out West | Attorney Steven Hayden | |
| 1943 | Wintertime | Jay Rogers (uncredited) | |
| 1943 | Behind the Rising Sun | O'Hara | |
| 1943 | Encontro em Berlim | Bill Banning (uncredited) | |
| 1943 | Comboio Para o Leste | Lieutenant-Commander (uncredited) | |
| 1943 | Original Pecado | FBI Agent Harding | |
| 1943 | He's My Guy | Kirk (as Don Douglas) | |
| 1942 | Seis Destinos | Henderson | |
| 1942 | Little Tokyo, U.S.A. | Hendricks | |
| 1942 | Don't Talk | FBI Agent Jack Sampson | |
| 1942 | On the Sunny Side | Mr. George Andrews (as Don Douglas) | |
| 1941 | Melody Lane | J. Roy Thomas | |
| 1941 | The Night of January 16th | Attorney Polk | |
| 1941 | Mercy Island | Clay Foster | |
| 1941 | Sargento York | Captain Tillman (uncredited) | |
| 1941 | A Porta de Ouro | Joe (uncredited) | |
| 1941 | The Pittsburgh Kid | (uncredited) | |
| 1941 | Herdeiro em Apuros | Deputy Commissioner O'Neill | |
| 1941 | Quem Com Ferro Fere | James 'Jim' Duff (as Don Douglas) | |
| 1941 | The Great Swindle | Bill Farrow | |
| 1941 | A Shot in the Dark | Roger Armstrong | |
| 1941 | Mortos Que Matam | Jed Thomasson | |
| 1941 | Testemunha Ocular | - | |
| 1941 | Murder Among Friends | Joe Ellis | |
| 1941 | Cheers for Miss Bishop | Delbert Thompson | |
| 1940 | Asas nas Trevas | 1st Duty Officer | |
| 1940 | Gallant Sons | Hackberry | |
| 1940 | Nem Só os Pombos Arrulham | Herbert | |
| 1940 | Deadwood Dick | Dick Stanley, aka Deadwood Dick | |
| 1940 | A Fugitive from Justice | Lee Leslie | |
| 1940 | Island of Doomed Men | Department of Justice Official | |
| 1940 | Edison, O Mago da Luz | Jordan | |
| 1940 | O Estranho Caso do Dr. Kildare | Mr. Grayson, Patient losing Eye Sight (uncredited) | |
| 1940 | Charlie Chan no Panamá | Captain Lewis | |
| 1940 | Três Horas Trágicas | Philip Wrede | |
| 1939 | Forgotten Victory | Mark Carleton | |
| 1939 | Fugitive at Large | Stevens | |
| 1939 | On Dress Parade | Col. Wm. Duncan | |
| 1939 | Smashing the Money Ring | Gordon (uncredited) | |
| 1939 | Sabotage | Joe Grayson | |
| 1939 | Stronger Than Desire | Mack Clark - Flagg's Investigator (uncredited) | |
| 1939 | A Casa Mal-Assombrada | John Woodford | |
| 1939 | Second Fiddle | Film Director | |
| 1939 | The Zero Hour | Stewart Brewster | |
| 1939 | Mr. Moto in Danger Island | Ship's Officer - Fight Referee | |
| 1939 | Within the Law | Inspector Burke | |
| 1939 | Fast and Loose | Forbes | |
| 1939 | Asas da Esquadra | Officer of the Day | |
| 1939 | Jesse James | Infantry Captain (uncredited) | |
| 1939 | The Mysterious Miss X | Clarence Fredericks | |
| 1939 | Pacific Liner | Ship's Officer (uncredited) | |
| 1938 | Law of the Texan | Chet Hackett | |
| 1938 | The Spider's Web | Jenkins | |
| 1938 | Sacrifício de Irmã | District Attorney | |
| 1938 | Smashing the Rackets | Harry Spaulding | |
| 1938 | The Crowd Roars | Murray | |
| 1938 | Fast Company | Lt. James Flanner | |
| 1938 | Come Across | Special Agent Thomas | |
| 1938 | Amor de Criança | J.J. Harper (uncredited) | |
| 1938 | Special Inspector | Williams | |
| 1937 | Headin' East | Eric Ward | |
| 1937 | Navy Blue and Gold | Lt. North (uncredited) | |
| 1937 | Madame X | Mr. Edison | |
| 1937 | The Women Men Marry | Auctioneer McVey (uncredited) | |
| 1935 | The Love Department | Gooper Goopalowski (uncredited) | |
| 1935 | Sequoia | Forest Ranger (uncredited) | |
| 1934 | Tomorrow's Children | Dr. Brooks | |
| 1934 | Alma de Médico | Mac | |
| 1934 | Lazy River | Officer | |
| 1934 | A Woman's Man | Walter Payson - Horseback Rider | |
| 1933 | He Couldn't Take It | Oakley | |
| 1932 | Life Begins | Medical Student (uncredited) | |
| 1932 | Murder in the Pullman | Vincent Lynch | |
| 1929 | Tonight at Twelve | Tom Stoddard | |
| 1929 | The Great Gabbo | Frank |