| Do Someone a Favor! | 1954 | George Dibson | Short Film |
| Ain't It Aggravatin' | 1954 | Parking Space Hog / Apartment House Manager / Frugal Man / ... | Short Film |
| Safe at Home | 1954 | The Husband (uncredited) | Short Film |
| Meet the O'Briens | 1954 | | TV Movie |
| Kiss Me Kate | 1953 | Ralph | Movie |
| Landlording It | 1953 | Silas Q. Softheart | Short Film |
| T.V. of Tomorrow | 1953 | Man on TV (uncredited) | Short Film |
| Cash Stashers | 1953 | Joe Shmoe | Short Film |
| Things We Can Do Without | 1953 | Thaddeus E. Thud III | Short Film |
| It Would Serve 'Em Right | 1953 | Chris Crusty | Short Film |
| The Postman | 1953 | Postman | Short Film |
| Reducing | 1952 | Man on Bench (uncredited) | Short Film |
| I Love Children, But! | 1952 | The Daddy | Short Film |
| It Could Happen to You | 1952 | | Short Film |
| Pedestrian Safety | 1952 | Dumb Pedestrian (uncredited) | Short Film |
| Keep It Clean | 1952 | Fall Guy (uncredited) | Short Film |
| The Red Skelton Hour | 1951 | Blackie / Ship's Captain / Mike / ... | TV Show |
| Fixin' Fool | 1951 | Husband | Short Film |
| Bandage Bait | 1951 | Butch | Short Film |
| In Case You're Curious | 1951 | The Husband (uncredited) | Short Film |
| That's What You Think | 1951 | The Husband (uncredited) | Short Film |
| Wrong Way Butch | 1950 | Butch | Short Film |
| Did'ja Know? | 1950 | Expectant Father / Greeting Card Customer / Patient / ... (uncredited) | Short Film |
| Wanted: One Egg | 1950 | The Husband (uncredited) | Short Film |
| A Wife's Life | 1950 | George T. Hardnose - Husband (uncredited) | Short Film |
| That's His Story | 1950 | Alibier (uncredited) | Short Film |
| So You Want to Be an Actor | 1949 | Audience member (uncredited) | Short Film |
| Those Good Old Days | 1949 | | Short Film |
| What I Want Next | 1949 | Dipsy Inventor (uncredited) | Short Film |
| How Come? | 1949 | | Short Film |
| We Can Dream, Can't We? | 1949 | Stooge (uncredited) | Short Film |
| Pest Control | 1948 | Cruising Wolf / Antique Dealer / Man in Tux / ... (uncredited) | Short Film |
| You Can't Win | 1948 | Harried Homeowner | Short Film |
| I Love My Mother-in-Law But... | 1948 | Husband | Short Film |
| Just Suppose | 1948 | Husband (uncredited) | Short Film |
| Let's Cogitate | 1948 | Photographer / Philanthropist / Husband (uncredited) | Short Film |
| Why Is It? | 1948 | Man | Short Film |
| I Love My Wife But! | 1947 | Husband | Short Film |
| Have You Ever Wondered? | 1947 | Husband / Driver / Man at Gumball Machine / ... | Short Film |
| Early Sports Quiz: What's Your I.Q. No. 13 | 1947 | Roller Skate Maker | Short Film |
| Pet Peeves | 1947 | Fall Guy (uncredited) | Short Film |
| What D'ya Know? | 1947 | Stooge (uncredited) | Short Film |
| Neighbor Pests | 1947 | The Pest (uncredited) | Short Film |
| I Love My Husband, But! | 1946 | The Husband | Short Film |
| Studio Visit | 1946 | O'Brien - Film Director (uncredited) | Short Film |
| Sure Cures | 1946 | Xavier T. Schneckendorf | Short Film |
| Treasures from Trash | 1946 | Alonzo T. Mousebrain | Short Film |
| Equestrian Quiz: What's Your I.Q.? No. 11 | 1946 | Horace (uncredited) | Short Film |
| The Phantom of 42nd Street | 1945 | Tony Woolrich | Movie |
| Enemy of the Law | 1945 | Dave Wyatt | Movie |
| Flaming Bullets | 1945 | Ranger Dave Wyatt / Steve Carson | Movie |
| Marked for Murder | 1945 | Dve Wyatt - Texas Ranger | Movie |
| Bus Pests | 1945 | Pest (uncredited) | Short Film |
| Frontier Fugitives | 1945 | Ranger Dave Wyatt | Movie |
| The Man Who Walked Alone | 1945 | Cpl. Marion Scott (as David O'Brien) | Movie |
| Three in the Saddle | 1945 | Ranger Dave Wyatt | Movie |
| Gangsters of the Frontier | 1944 | Dave Wyatt | Movie |
| Brand of the Devil | 1944 | Tex Wyatt (as Dave 'Tex' O'Brien) | Movie |
| Dead or Alive | 1944 | Dave Wyatt | Movie |
| The Whispering Skull | 1944 | Dave Wyatt | Movie |
| Movie Pests | 1944 | Feet-in-the-Aisle Pest (uncredited) | Short Film |
| Guns of the Law | 1944 | Texas Ranger Tex Wyatt (as Dave 'Tex' O'Brien) | Movie |
| Gunsmoke Mesa | 1944 | Texas Ranger Tex Wyatt (as Dave 'Tex' O'Brien) | Movie |
| Outlaw Roundup | 1944 | Texas Ranger Tex Wyatt (as Dave 'Tex' O'Brien) | Movie |
| The Pinto Bandit | 1944 | Texas Ranger Tex Wyatt (as Dave 'Tex' O'Brien) | Movie |
| Spook Town | 1944 | Texas Ranger Tex Wyatt (as Dave 'Tex' O'Brien) | Movie |
| Tahiti Nights | 1944 | Jack | Movie |
| Safety Sleuth | 1944 | Careless Man (uncredited) | Short Film |
| Sportsman's Memories | 1944 | Joe Funk (uncredited) | Short Film |
| Salute to the Marines | 1943 | Sergeant (uncredited) | Movie |
| Border Buckaroos | 1943 | Tex Wyatt (as Dave 'Tex' O'Brien) | Movie |
| Fighting Valley | 1943 | Texas Ranger Tex Wyatt (as Dave 'Tex' O'Brien) | Movie |
| First Aid | 1943 | Crandall K. Krumb (uncredited) | Short Film |
| The Return of the Rangers | 1943 | Texas Ranger Tex Wyatt (as Dave 'Tex' O'Brien) | Movie |
| West of Texas | 1943 | Texas Ranger Tex Wyatt (as Dave 'Tex' O'Brien) | Movie |
| Boss of Rawhide | 1943 | Texas Ranger Tex Wyatt (as Dave 'Tex' O'Brien) | Movie |
| Trail of Terror | 1943 | Tex Wyatt / Curly Wyatt (as Dave 'Tex' O'Brien) | Movie |
| Bad Men of Thunder Gap | 1943 | Tex Wyatt - Texas Ranger (as Dave Tex O'Brien) | Movie |
| Who's Superstitious? | 1943 | Man Who Slips on the Street / Woman Who Falls Down Stairs (uncredited) | Short Film |
| Seventh Column | 1943 | Falstaff Pratt - The Indestructible Man (uncredited) | Short Film |
| Fixin' Tricks | 1943 | The Husband (uncredited) | Short Film |
| 'Neath Brooklyn Bridge | 1942 | Sgt. Jim Lyons | Movie |
| Bowery at Midnight | 1942 | Pete Crawford | Movie |
| Billy the Kid's Smoking Guns | 1942 | Jeff Travis | Movie |
| Captain Midnight | 1942 | Captain Midnight | Movie |
| Law and Order | 1942 | Jeff (as Tex O'Brien) | Movie |
| Prisoner of Japan | 1942 | U.S. Marine | Movie |
| Sheriff of Sage Valley | 1942 | Jeff Travis (as Tex O'Brien) | Movie |
| The Yanks Are Coming | 1942 | Sgt. Callahan | Movie |
| Calling All Pa's | 1942 | Joe Thunderstruck | Short Film |
| Carry Harry | 1942 | Arthur - Harry's Friend (uncredited) | Short Film |
| Criminal Investigator | 1942 | Bill Wilson (uncredited) | Movie |
| Down Texas Way | 1942 | Dave Dodge | Movie |
| King of the Stallions | 1942 | Steve Mason | Movie |
| Victory Vittles | 1942 | The Husband (uncredited) | Short Film |
| What About Daddy? | 1942 | The Husband (uncredited) | Short Film |
| The Rangers Take Over | 1942 | Texas Ranger Tex Wyatt (as Dave 'Tex' O'Brien) | Movie |
| Famous Boners | 1942 | Woman Who Falls Down Stairs (uncredited) | Short Film |
| Victory Quiz | 1942 | Submarine Lookout (uncredited) | Short Film |
| Spooks Run Wild | 1941 | Jeff Dixon (as David O'Brien) | Movie |
| The Spider Returns | 1941 | Jackson, Wentworth's Aide | Movie |
| Billy the Kid in Santa Fe | 1941 | Texas Joe | Movie |
| Billy the Kid Wanted | 1941 | Jeff | Movie |
| Ellery Queen and the Murder Ring | 1941 | Roadside Ambulance Attendant (uncredited) | Movie |
| Flying Wild | 1941 | Tom Larson | Movie |
| Murder by Invitation | 1941 | Michael | Movie |
| The Deadly Game | 1941 | Ralph Spencer | Movie |
| The Gunman from Bodie | 1941 | Joe Martin (as David O'Brien) | Movie |
| Double Trouble | 1941 | Sparky Barton (as David O'Brien) | Movie |
| Forbidden Trails | 1941 | Jim Cramer | Movie |
| The Texas Marshal | 1941 | Buzz Weston | Movie |
| Buzzy and the Phantom Pinto | 1941 | Jim Dana | Movie |
| Boys of the City | 1940 | Knuckles Dolan (as David O'Brien) | Movie |
| East Side Kids | 1940 | Knuckles Dolan | Movie |
| That Gang of Mine | 1940 | Knuckles Dolan | Movie |
| The Devil Bat | 1940 | Johnny Layton | Movie |
| Danger Ahead | 1940 | Corporal Kelly | Movie |
| Hold That Woman! | 1940 | Miles Hanover | Movie |
| Isle of Destiny | 1940 | Whitey - Navy Radio Man (uncredited) | Movie |
| Murder on the Yukon | 1940 | Constable Kelly | Short Film |
| Sky Bandits | 1940 | Constable Kelly | Movie |
| Son of the Navy | 1940 | Nelson (as Dave O'Brian) | Movie |
| Yukon Flight | 1940 | Constable Kelly | Movie |
| The Cowboy from Sundown | 1940 | Steve Davis | Movie |
| Gun Code | 1940 | Gale | Movie |
| The Kid from Santa Fe | 1940 | Chester | Movie |
| On the Spot | 1940 | Charlie (uncredited) | Movie |
| Phantom Rancher | 1940 | Lucke - Henchman | Movie |
| Queen of the Yukon | 1940 | Bob Adams | Movie |
| Buzzy Rides the Range | 1940 | Ken Blair | Movie |
| Buried Alive | 1939 | Carson | Movie |
| Daughter of the Tong | 1939 | Jerry Morgan | Movie |
| New Frontier | 1939 | Jason Braddock | Movie |
| On Your Toes | 1939 | Man in Audience (uncredited) | Movie |
| The Arizona Kid | 1939 | Soldier (uncredited) | Movie |
| Wyoming Outlaw | 1939 | Acacia Park Game Warden (uncredited) | Movie |
| Code of the Cactus | 1939 | Bob Swane | Movie |
| Crashing Thru | 1939 | Fred Chambers | Movie |
| Fighting Mad | 1939 | Constable Kelly | Movie |
| Main Street Lawyer | 1939 | Cast (uncredited) | Movie |
| Trigger Smith | 1939 | Henchman Duke | Movie |
| Undercover Agent | 1939 | Billiards Player (uncredited) | Movie |
| Water Rustlers | 1939 | Bob Lawson (as David O'Brien) | Movie |
| Drifting Westward | 1939 | Henchman Trigger (as David O'Brien) | Movie |
| The Fighting Renegade | 1939 | Dr. Jerry Leonard | Movie |
| Flaming Lead | 1939 | Frank Gordon | Movie |
| Mutiny in the Big House | 1939 | Daniels - Prison Guard | Movie |
| Outlaws' Paradise | 1939 | Henchman Meggs | Movie |
| Riders of the Sage | 1939 | Tom Martin | Movie |
| Rollin' Westward | 1939 | Cowhand Red | Movie |
| Texas Wildcats | 1939 | Ed Arden | Movie |
| The Secret of Treasure Island | 1938 | Det. Jameson [Chs. 4-7 | Movie |
| Born to Be Wild | 1938 | Trucker (uncredited) | Movie |
| Frontier Scout | 1938 | Steve Norris | Movie |
| Utah Trail | 1938 | Mason - Bookkeeper (as David O'Brien) | Movie |
| Where the Buffalo Roam | 1938 | Jeff Gray | Movie |
| Whirlwind Horseman | 1938 | Slade | Movie |
| Gun Packer | 1938 | Red Baker - Henchman | Movie |
| Law of the Texan | 1938 | Henchman (uncredited) | Movie |
| Man's Country | 1938 | Bat - Henchman | Movie |
| Starlight Over Texas | 1938 | Henchman (uncredited) | Movie |
| The Singing Cowgirl | 1938 | Dick Williams (as David O'Brien) | Movie |
| Song of the Buckaroo | 1938 | Tex Alden | Movie |
| Renfrew of the Royal Mounted | 1937 | Charles Dreamy Nolan (uncredited) | Movie |
| When You're in Love | 1937 | Dancer (uncredited) | Movie |
| Mr. Dodd Takes the Air | 1937 | Studio 9 Technician (uncredited) | Movie |
| Navy Spy | 1937 | Ens. Drake (uncredited) | Movie |
| Youth on Parole | 1937 | Prison Guard (uncredited) | Movie |
| Brothers of the West | 1937 | Henchman Bart | Movie |
| Lightnin' Crandall | 1937 | Tommy Shannon | Movie |
| Million Dollar Racket | 1937 | Johnny Henessey (as David O'Brien) | Movie |
| Rough Riding Rhythm | 1937 | Detective Waters (as David O'Brien) | Movie |
| Reefer Madness | 1936 | Ralph | Movie |
| The Oregon Trail | 1936 | Settler (uncredited) | Movie |
| Dancing Feet | 1936 | Partygoer (uncredited) | Movie |
| The Adventures of Frank Merriwell | 1936 | George Baldwin (uncredited) | Movie |
| The Crime of Dr. Forbes | 1936 | Student Doctor (uncredited) | Movie |
| Wanted -- A Master | 1936 | Diner Man Who Feeds Hector (uncredited) | Short Film |
| The Black Coin | 1936 | Terry Navarro | Movie |
| The Girl on the Front Page | 1936 | Nightclub Patron (uncredited) | Movie |
| Doubting Thomas | 1935 | Member of Audience (uncredited) | Movie |
| No More Ladies | 1935 | Party Guest (uncredited) | Movie |
| Red Salute | 1935 | Student at Rally (uncredited) | Movie |
| Rumba | 1935 | Man in Audience at Theatre (uncredited) | Movie |
| The Little Colonel | 1935 | Frank Randolph - Party Guest (uncredited) | Movie |
| Hooray for Love | 1935 | Chorus Boy in Show (uncredited) | Movie |
| Let 'em Have It | 1935 | Federal Agent (uncredited) | Movie |
| She Married Her Boss | 1935 | Shopper | Movie |
| Sweet Music | 1935 | Man in Theatre Audience (uncredited) | Movie |
| The Flame Within | 1935 | Party Guest (uncredited) | Movie |
| Woman Wanted | 1935 | Steve (uncredited) | Movie |
| Fighting Youth | 1935 | Manchester Student (uncredited) | Movie |
| Ship Cafe | 1935 | Young Man (uncredited) | Movie |
| Welcome Home | 1935 | Stanley Phillips | Movie |
| Belle of the Nineties | 1934 | Shipboard Admirer (uncredited) | Movie |
| Bright Eyes | 1934 | Bill - Aviator (uncredited) | Movie |
| Gift of Gab | 1934 | Dancer (uncredited) | Movie |
| Murder at the Vanities | 1934 | Chorus Boy (uncredited) | Movie |
| Music in the Air | 1934 | Karl Roder (singing voice, uncredited) | Movie |
| Search for Beauty | 1934 | Talent Contestant (uncredited) | Movie |
| The Silver Streak | 1934 | Boulder Dam Phone Operator (uncredited) | Movie |
| Tomorrow's Children | 1934 | Intern (uncredited) | Movie |
| Wonder Bar | 1934 | Chorus Boy (uncredited) | Movie |
| College Rhythm | 1934 | College Boy (uncredited) | Movie |
| Coming-Out Party | 1934 | Party Guest (uncredited) | Movie |
| Good Dame | 1934 | Boy Friend (uncredited) | Movie |
| Student Tour | 1934 | Student (uncredited) | Movie |
| We're Rich Again | 1934 | Pete (uncredited) | Movie |
| The Hell Cat | 1934 | Polo Player (uncredited) | Movie |
| 42nd Street | 1933 | Chorus Boy (uncredited) | Movie |
| College Coach | 1933 | Student on Tennis Court (uncredited) | Movie |
| College Humor | 1933 | Student (uncredited) | Movie |
| Footlight Parade | 1933 | Chorus Boy (uncredited) | Movie |
| Night of Terror | 1933 | Young Victim (uncredited) | Movie |
| One Man's Journey | 1933 | Dance Extra (uncredited) | Movie |
| Sitting Pretty | 1933 | Assistant Cameraman (uncredited) | Movie |
| The World Changes | 1933 | Otto Peterson (uncredited) | Movie |
| Jennie Gerhardt | 1933 | Bass Gerhardt (uncredited) | Movie |
| Pick-up | 1933 | Party Boy (uncredited) | Movie |
| Devil and the Deep | 1932 | Submarine Crewman (uncredited) | Movie |
| Hot Saturday | 1932 | Party Guest (uncredited) | Movie |
| Rasputin and the Empress | 1932 | Soldier (uncredited) | Movie |
| Speak Easily | 1932 | Chorus Boy (uncredited) | Movie |
| The Sign of the Cross | 1932 | Christian on Stairway (uncredited) | Movie |
| Is My Face Red? | 1932 | Chorus Boy (uncredited) | Movie |
| Roar of the Dragon | 1932 | Submarine Crewman (uncredited) | Movie |
| 70,000 Witnesses | 1932 | Football Player (uncredited) | Movie |
| Flying High | 1931 | Dancer (uncredited) | Movie |
| Consolation Marriage | 1931 | Man Picking Up Stack of Newspapers (uncredited) | Movie |
| Lover Come Back | 1931 | Pool Party Boy (uncredited) | Movie |
| Good News | 1930 | Student (uncredited) | Movie |
| Madam Satan | 1930 | Zeppelin Reveler (uncredited) | Movie |
| Maybe It's Love | 1930 | Student at Rally (uncredited) | Movie |
| The Dawn Patrol | 1930 | Pilot (uncredited) | Movie |
| Sweet Memories | | The Husband | Short Film |
