| Theatre of the West | 1955 | Printer | TV Movie |
| A Star Is Born | 1954 | Charley (uncredited) | Movie |
| Them! | 1954 | Jensen (as Olin Howlin) | Movie |
| Father Knows Best | 1954 | Ed | TV Show |
| The Mickey Rooney Show | 1954 | Ralph Switzer | TV Show |
| The Donald O'Connor Show | 1954 | | TV Show |
| So This Is Love | 1953 | Mailman (uncredited) | Movie |
| Hopalong Cassidy | 1952 | Sheriff | TV Show |
| Mr. & Mrs. North | 1952 | Silas | TV Show |
| The Ford Television Theatre | 1952 | Paw Dooley | TV Show |
| The Fabulous Senorita | 1952 | Justice of the Peace (as Olin Howlin) | Movie |
| Gobs and Gals | 1952 | Conductor (as Olin Howlin) | Movie |
| Santa Fe | 1951 | Dan Dugan (as Olin Howlin) | Movie |
| I Love Lucy | 1951 | George Skinner | TV Show |
| Fighting Coast Guard | 1951 | Desk Clerk (as Olin Howlin) | Movie |
| A Ticket to Tomahawk | 1950 | Railway Conductor (uncredited) | Movie |
| Never a Dull Moment | 1950 | Hunter (uncredited) | Movie |
| The Nevadan | 1950 | Rusty (uncredited) | Movie |
| Lux Video Theatre | 1950 | Bartender / Pete Walters / Sheriff | TV Show |
| Rock Island Trail | 1950 | Saloonkeeper (as Olin Howlin) | Movie |
| Stage to Tucson | 1950 | Chantry (uncredited) | Movie |
| Father Makes Good | 1950 | Milo Williams | Movie |
| He's a Cockeyed Wonder | 1950 | Hotel Clerk (uncredited) | Movie |
| Charlie's Haunt | 1950 | Storyteller on Bench (as Olin Howlin) | Movie |
| A Connecticut Yankee in King Arthur's Court | 1949 | Sam - Connecticut Postman (uncredited) | Movie |
| Hellfire | 1949 | Bartender (uncredited) | Movie |
| Little Women | 1949 | Mr. Davis - Schoolteacher (uncredited) | Movie |
| Top o' the Morning | 1949 | Barfly (uncredited) | Movie |
| Anna Lucasta | 1949 | Station Master (uncredited) | Movie |
| Badmen of Tombstone | 1949 | Store Proprietor (as Olin Howlin) | Movie |
| Grand Canyon | 1949 | Windy (as Olin Howlin) | Movie |
| Mr. Soft Touch | 1949 | Skinny Santa Claus (uncredited) | Movie |
| Leave It to Henry | 1949 | Milo Williams (as Olin Howlin) | Movie |
| I Walk Alone | 1948 | Ed the Watchman (uncredited) | Movie |
| Isn't It Romantic? (film) | 1948 | Hotel Clerk (uncredited) | Movie |
| Last of the Wild Horses | 1948 | Remedy Williams (as Olin Howlin) | Movie |
| Station West | 1948 | Cook (as Olin Howlin) | Movie |
| The Paleface | 1948 | Jonathan Sloane, undertaker | Movie |
| My Dog Rusty | 1948 | Frank Foley (uncredited) | Movie |
| Relentless | 1948 | Horse Doctor (uncredited) | Movie |
| The Dude Goes West | 1948 | Finnegan (as Olin Howlin) | Movie |
| The Return of the Whistler | 1948 | Jeff Anderson (uncredited) | Movie |
| Smoky Mountain Melody | 1948 | Lum Peters (as Olin Howlin) | Movie |
| Angel and the Badman | 1947 | Bradley (as Olin Howlin) | Movie |
| Living in a Big Way | 1947 | The Morgan Gardener (uncredited) | Movie |
| The Fabulous Texan | 1947 | McGinn - Storekeeper (uncredited) | Movie |
| The Trouble with Women | 1947 | Mr. Pink (uncredited) | Movie |
| Wyoming | 1947 | Cowboy Wanting Herd (uncredited) | Movie |
| Kraft Theatre | 1947 | Lefty MacDonald | TV Show |
| Apache Rose | 1947 | Alkali (as Olin Howlin) | Movie |
| Easy Come, Easy Go | 1947 | Gas Man (uncredited) | Movie |
| For the Love of Rusty | 1947 | Frank Foley (uncredited) | Movie |
| Keeper of the Bees | 1947 | Customer (as Olin Howlin) | Movie |
| Colonel Effingham's Raid | 1946 | Painter (uncredited) | Movie |
| Home, Sweet Homicide | 1946 | Luke (uncredited) | Movie |
| The Strange Love of Martha Ivers | 1946 | Newspaper Clerk (uncredited) | Movie |
| Three Wise Fools | 1946 | Witness (uncredited) | Movie |
| Crime Doctor's Man Hunt | 1946 | Marcus Le Blaine (uncredited) | Movie |
| She Wrote the Book | 1946 | Baggage Master (uncredited) | Movie |
| Captain Eddie | 1945 | Census Taker (as Olin Howlin) | Movie |
| Dakota | 1945 | Devlin's Driver (as Olin Howlin) | Movie |
| Fallen Angel | 1945 | Joe Ellis (uncredited) | Movie |
| Incendiary Blonde | 1945 | Interior Decorator (uncredited) | Movie |
| It's in the Bag! | 1945 | Dr. Greengrass's Doctor (uncredited) | Movie |
| Grissly's Millions | 1945 | Andrews (uncredited) | Movie |
| Sing Your Way Home | 1945 | Zany Steward (uncredited) | Movie |
| Her Lucky Night | 1945 | Prince de la Mour (as Olin Howlin) | Movie |
| Santa Fe Saddlemates | 1945 | Aloysius J. Philpots (as Olin Howlin) | Movie |
| Senorita from the West | 1945 | Justice of Peace (as Olin Howlin) | Movie |
| She Gets Her Man | 1945 | Hank (uncredited) | Movie |
| Sheriff of Cimarron | 1945 | Pinky Snyder (as Olin Howlin) | Movie |
| And Now Tomorrow | 1944 | Customer (uncredited) | Movie |
| Can't Help Singing | 1944 | Bigelow (as Olin Howlin) | Movie |
| I'll Be Seeing You | 1944 | Train Vendor (uncredited) | Movie |
| In the Meantime, Darling | 1944 | J.P. 'Hiram' Morehousse (uncredited) | Movie |
| Nothing But Trouble | 1944 | Painter's Foreman (uncredited) | Movie |
| The Adventures of Mark Twain | 1944 | Riverboat Southerner (uncredited) | Movie |
| Bermuda Mystery | 1944 | Gas Station Owner (as Olin Howlin) | Movie |
| Goodnight, Sweetheart | 1944 | Slim Taylor (as Olin Howlin) | Movie |
| Man from Frisco | 1944 | Eben Whelock (as Olin Howlin) | Movie |
| The Town Went Wild | 1944 | Bit Part (as Olin Howland) | Movie |
| Allergic to Love | 1944 | Sam Walker (as Olin Howlin) | Movie |
| Sing, Neighbor, Sing | 1944 | Joe the Barber (as Olin Howlin) | Movie |
| Twilight on the Prairie | 1944 | Jed (as Olin Howlin) | Movie |
| A Stranger in Town | 1943 | Homer Todds (as Olin Howlin) | Movie |
| Dixie | 1943 | Mr. Deveraux (as Olin Howlin) | Movie |
| Jack London | 1943 | Mailman (uncredited) | Movie |
| The Falcon Strikes Back | 1943 | Sheriff (uncredited) | Movie |
| The Good Fellows | 1943 | Reynolds (as Olin Howlin) | Movie |
| The Sky's the Limit | 1943 | Driver (uncredited) | Movie |
| Young and Willing | 1943 | Second Cop (as Olin Howlin) | Movie |
| Lady Bodyguard | 1943 | Dr. Saunders (as Olin Howlin) | Movie |
| The Falcon and the Co-eds | 1943 | Goodwillie (as Olin Howlin) | Movie |
| Her Cardboard Lover | 1942 | Frank - Casino Manager (uncredited) | Movie |
| In Old California | 1942 | Salesman (uncredited) | Movie |
| Mr. and Mrs. North | 1942 | Undetermined Role (scenes deleted, as Olin Howlin) | Movie |
| Orchestra Wives | 1942 | Dance Ticket-Taker (uncredited) | Movie |
| Ten Gentlemen from West Point | 1942 | Carpenter (uncredited) | Movie |
| The Man Who Wouldn't Die | 1942 | Chief of Police Jonathan Meek (as Olin Howlin) | Movie |
| This Gun for Hire | 1942 | Blair Fletcher (as Olin Howlin) | Movie |
| Almost Married | 1942 | Bright | Movie |
| Blondie's Blessed Event | 1942 | Office Worker (uncredited) | Movie |
| Dr. Broadway | 1942 | The Professor (as Olin Howlin) | Movie |
| Home in Wyomin' | 1942 | Sunrise (as Olin Howlin) | Movie |
| Ridin' Down the Canyon | 1942 | The Jailer (as Olin Howlin) | Movie |
| When Johnny Comes Marching Home | 1942 | Trullers (as Olin Howlin) | Movie |
| You Can't Escape Forever | 1942 | Cemetery Organist (uncredited) | Movie |
| Henry and Dizzy | 1942 | Mr. Stevens | Movie |
| Joan of Ozark | 1942 | Game Warden (uncredited) | Movie |
| Mrs. Wiggs of the Cabbage Patch | 1942 | Jacob Diezal (uncredited) | Movie |
| Secrets of the Underground | 1942 | Oscar Mayberry (as Olin Howlin) | Movie |
| Sappy Birthday | 1942 | Mr. Plantem, Cemetary Plot Salesman | Short Film |
| Belle Starr | 1941 | Jasper Trench | Movie |
| One Foot in Heaven | 1941 | Train Station Master (uncredited) | Movie |
| The Great Lie | 1941 | Ed - Arizona Ranch Hand (scenes deleted) | Movie |
| The Shepherd of the Hills | 1941 | Corky | Movie |
| Two-Faced Woman | 1941 | Frank (uncredited) | Movie |
| You're in the Army Now | 1941 | Pa - The Farmer (uncredited) | Movie |
| Buy Me That Town | 1941 | Constable Sam Smedley (as Olin Howlin) | Movie |
| Ellery Queen and the Murder Ring | 1941 | Dr. Williams | Movie |
| Chad Hanna | 1940 | Cisco Tridd | Movie |
| Young People | 1940 | Station Master | Movie |
| Young Tom Edison | 1940 | Telegrapher (Indian Attack) (uncredited) | Movie |
| Comin' Round the Mountain | 1940 | Pa Blower (as Olin Howlin) | Movie |
| The Doctor Takes a Wife | 1940 | Hotel Clerk (uncredited) | Movie |
| Just a Cute Kid | 1940 | Dr. Clump | Short Film |
| Days of Jesse James | 1939 | Muncie Undersheriff | Movie |
| Four Wives | 1939 | Joe - Policeman (uncredited) | Movie |
| Gone with the Wind | 1939 | A Carpetbagger Businessman | Movie |
| Made for Each Other | 1939 | Farmer (uncredited) | Movie |
| Nancy Drew... Reporter | 1939 | Police Sgt. Entwhistle | Movie |
| The Return of Doctor X | 1939 | Undertaker | Movie |
| Zenobia | 1939 | Attorney Culpepper | Movie |
| Blondie Brings Up Baby | 1939 | Encyclopedia Salesman | Movie |
| Boy Slaves | 1939 | Cookie (uncredited) | Movie |
| The Kid from Kokomo | 1939 | Sam, the Whittler (uncredited) | Movie |
| Ambush | 1939 | Radio Actor (segment "Uncle Toby") (uncredited) | Movie |
| One Hour to Live | 1939 | Clerk (as Olin Howlin) | Movie |
| Brother Rat | 1938 | Slim | Movie |
| Merrily We Live | 1938 | Jed Smith (uncredited) | Movie |
| Mr. Moto's Gamble | 1938 | Deputy Sheriff Burt (uncredited) | Movie |
| Sweethearts | 1938 | Appleby | Movie |
| Swing Your Lady | 1938 | Hotel Proprietor | Movie |
| The Adventures of Tom Sawyer | 1938 | Mr. Dobbins - Schoolmaster | Movie |
| The Girl of the Golden West | 1938 | 'Trinidad Joe' | Movie |
| The Mad Miss Manton | 1938 | Mr. X | Movie |
| Kentucky Moonshine | 1938 | Tom Slack (as Olin Howlin) | Movie |
| Little Tough Guy | 1938 | Baxter | Movie |
| When Were You Born | 1938 | Peter Finlay (Sagittarius) | Movie |
| A Trip to Paris | 1938 | Fred (uncredited) | Movie |
| Old Raid Mule, The | 1938 | Ben Cole (as Olin Howlin) | Short Film |
| A Star Is Born | 1937 | Judd Baker (uncredited) | Movie |
| Nothing Sacred | 1937 | Vermont Baggage Man | Movie |
| Stand-In | 1937 | Hotel Manager (uncredited) | Movie |
| Stella Dallas | 1937 | Stephen's Office Clerk (uncredited) | Movie |
| Marry the Girl | 1937 | First Southerner | Movie |
| Men in Exile | 1937 | H. Mortimer Jones | Movie |
| Mountain Music | 1937 | Pappy Burnside (as Olin Howlin) | Movie |
| The Bad Man of Brimstone | 1937 | Jardge - Stage Driver (uncredited) | Movie |
| Wife, Doctor and Nurse | 1937 | Doorman Jim | Movie |
| Earthworm Tractors | 1936 | Mr. Blair | Movie |
| Gold Diggers of 1937 | 1936 | Dr. MacDuffy | Movie |
| I Married a Doctor | 1936 | Dave Dyer | Movie |
| Satan Met a Lady | 1936 | Detective Dunhill | Movie |
| The Case of the Velvet Claws | 1936 | Wilbur Strong | Movie |
| Country Gentlemen | 1936 | Lawyer | Movie |
| The Longest Night | 1936 | Smythe - Floorwalker | Movie |
| The Big Noise | 1936 | Harrison | Movie |
| Love Letters of a Star | 1936 | | Movie |
| Man Hunt | 1936 | Court Starrett | Movie |
| Road Gang | 1936 | Doctor (as Olin Howlin) | Movie |
| Snowed Under | 1936 | Bridgeport Sheriff (uncredited) | Movie |
| Folies Bergère de Paris | 1935 | Stage Manager | Movie |
| Naughty Marietta | 1935 | Undetermined Secondary Role (uncredited) | Movie |
| The Case of the Curious Bride | 1935 | Coroner Wilbur Strong | Movie |
| Dr. Socrates | 1935 | Bob Catlett | Movie |
| Little Big Shot | 1935 | Doc - Kells' Henchman (uncredited) | Movie |
| Love Me Forever | 1935 | Carlton - Interior Decorator (uncredited) | Movie |
| The Case of the Lucky Legs | 1935 | Dr. Croker | Movie |
| Under Pressure | 1935 | Newspaper Reporter (uncredited) | Movie |
| The Widow from Monte Carlo | 1935 | Eaves | Movie |
| Marie Galante | 1934 | Clerk French Consul (uncredited) | Movie |
| Treasure Island | 1934 | Pirate of the Spanish Main | Movie |
| Behold My Wife | 1934 | Mattingly (uncredited) | Movie |
| Wagon Wheels | 1934 | Bill O'Leary | Movie |
| Private Scandal | 1934 | Ed - Coroner | Movie |
| Look for the Silver Lining | 1934 | | Short Film |
| Little Women | 1933 | Mr. Davis (uncredited) | Movie |
| Blondie Johnson | 1933 | Eddie | Movie |
| Golden Harvest | 1933 | Wheat Farmer (uncredited) | Movie |
| Torchy's Loud Spooker | 1933 | | Short Film |
| So Big! | 1932 | Jacob Pogadunk (uncredited) | Movie |
| Cheaters at Play | 1932 | Secretary | Movie |
| Over the Hill | 1931 | Isaac Shelby (as Olin Howlin) | Movie |
| Zander the Great | 1925 | Elmer Lovejoy | Movie |
| Janice Meredith | 1924 | Philemon Hennion | Movie |
| The Great White Way | 1924 | Stubbs (as Olin Howlin) | Movie |
| Danse macabre | 1922 | Death | Short Film |
| Beresford and the Baboons | 1919 | Beresford (as Olin Howlin) | Short Film |
| One Every Minute | 1919 | | Short Film |
| Impropaganda | 1919 | | Short Film |
| Independence, B'Gosh | 1918 | Horation Whiffle (as Olin Howlin) | Short Film |
| Perfectly Fiendish Flanagan; or, The Hart of the Dreadful West | 1918 | Dirk Mendez (as Olin Howlin) | Short Film |
| Tell That to the Marines | 1918 | Eliot Brainard (as Olin Howlin) | Short Film |
| Hick Manhattan | 1918 | Hugh Columbus McGinty (as Olin Howlin) | Short Film |
| Romance in Brass Tacks | 1918 | | Short Film |
