| Title | Year | Status | Character |
|---|
| Men in Exile | 1937 | | H. Mortimer Jones |
| Gold Diggers of 1937 | 1936 | | Dr. MacDuffy |
| Country Gentlemen | 1936 | | Lawyer |
| Love Letters of a Star | 1936 | | |
| The Longest Night | 1936 | | Smythe, Floorwalker |
| The Case of the Velvet Claws | 1936 | | Wilbur Strong |
| Earthworm Tractors | 1936 | | Mr. Blair |
| Satan Met a Lady | 1936 | | Detective Dunhill |
| The Big Noise | 1936/I | | Harrison |
| I Married a Doctor | 1936 | | Dave Dyer |
| Snowed Under | 1936 | | Bridgeport Sheriff (uncredited) |
| Road Gang | 1936 | | Doctor |
| Man Hunt | 1936 | | Starrett |
| The Widow from Monte Carlo | 1935 | | Eaves |
| Dr. Socrates | 1935 | | Bob Catlett |
| The Case of the Lucky Legs | 1935 | | Dr. Croker |
| Little Big Shot | 1935 | | Doc - Kells' Henchman (uncredited) |
| Love Me Forever | 1935 | | Carlton - Interior Decorator (uncredited) |
| The Case of the Curious Bride | 1935 | | Coroner Wilbur Strong |
| Naughty Marietta | 1935 | uncredited | |
| Folies Bergère de Paris | 1935 | | Stage Manager |
| Under Pressure | 1935 | | Newspaper Reporter (uncredited) |
| Behold My Wife! | 1934 | | Mattingly (uncredited) |
| Marie Galante | 1934 | | Clerk French Consul (uncredited) |
| Wagon Wheels | 1934 | | Bill O'Leary |
| Treasure Island | 1934 | | Pirate of the Spanish Main |
| Private Scandal | 1934 | | Ed, Coroner |
| Little Women | 1933 | | Mr. Davis (uncredited) |
| Golden Harvest | 1933 | | Wheat Farmer (uncredited) |
| Blondie Johnson | 1933 | | Eddie |
| So Big! | 1932 | | Jacob Pogadunk (uncredited) |
| Cheaters at Play | 1932 | | Secretary |
| Over the Hill | 1931 | | Isaac as an Adult (as Olin Howlin) |
| Zander the Great | 1925 | | Elmer Lovejoy (as Olin Howlin) |
| Janice Meredith | 1924 | | Philemon (as Olin Howlin) |
| The Great White Way | 1924 | | Stubbs (as Olin Howlin) |
| Danse macabre | 1922 | Short | Death |
| Beresford and the Baboons | 1919 | Short | Beresford (as Olin Howlin) |
| Impropaganda | 1919 | Short | |
| One Every Minute | 1919 | Short unconfirmed | |
| Hick Manhattan | 1918 | Short as Olin Howlin | |
| Romance and Brass Tacks | 1918 | Short | |
| Perfectly Fiendish Flanagan; or, The Hart of the Dreadful West | 1918 | Short | Flanagan (as Olin Howlin) |
| Independence, B'Gosh | 1918 | Short as Olin Howlin | |
| Tell That to the Marines | 1918 | Short as Olin Howlin | |
| Father Knows Best | 1959 | TV Series | Ed |
| Fibber McGee and Molly | 1959 | TV Series | Adam Davis |
| The Californians | 1959 | TV Series | Martin Chandler |
| The Real McCoys | 1958-1959 | TV Series | Charley Perkins / Charlie Perkins |
| The Blob | 1958 | | Old Man (as Olin Howlin) |
| The Adventures of Jim Bowie | 1958 | TV Series | Paw Jimson |
| Bombers B-52 | 1957 | | Joe (uncredited) |
| The Spirit of St. Louis | 1957 | | Surplus Dealer (uncredited) |
| The Storm Rider | 1957 | | Will Collins (as Olin Howlin) |
| Circus Boy | 1956 | TV Series | Swifty |
| The McConnell Story | 1955 | | Sam - Postman (uncredited) |
| The Donald O'Connor Show | 1955 | TV Series | |
| The Mickey Rooney Show | 1955 | TV Series | Ralph Switzer |
| I Love Lucy | 1955 | TV Series | George Skinner |
| Lux Video Theatre | 1952-1954 | TV Series | Bartender / Pete Walters / Sheriff |
| A Star Is Born | 1954 | | Charley (uncredited) |
| Them! | 1954 | | Jensen (as Olin Howlin) |
| The Ford Television Theatre | 1952-1954 | TV Series | Paw Dooley |
| Kraft Theatre | 1953 | TV Series | |
| So This Is Love | 1953 | | Mailman (uncredited) |
| Mr. & Mrs. North | 1953 | TV Series | Silas |
| Big Town | 1952 | TV Series | Dozo Dugan |
| Hopalong Cassidy | 1952 | TV Series | Sheriff |
| Gobs and Gals | 1952 | | Conductor (as Olin Howlin) |
| The Fabulous Senorita | 1952 | | Justice of the Peace (as Olin Howlin) |
| Fighting Coast Guard | 1951 | | Desk Clerk (as Olin Howlin) |
| Santa Fe | 1951 | | Dan Dugan (as Olin Howlin) |
| Charlie's Haunt | 1950 | | Storyteller on Bench (as Olin Howlin) |
| Stage to Tucson | 1950 | | Chantry (uncredited) |
| He's a Cockeyed Wonder | 1950 | | Hotel Clerk (uncredited) |
| Never a Dull Moment | 1950 | | Hunter (uncredited) |
| Father Makes Good | 1950 | | Milo Williams |
| Rock Island Trail | 1950 | | Saloonkeeper (as Olin Howlin) |
| A Ticket to Tomahawk | 1950 | | Railway Conductor (uncredited) |
| The Nevadan | 1950 | | Rusty (uncredited) |
| Top o' the Morning | 1949 | | Barfly (uncredited) |
| Mr. Soft Touch | 1949 | | Skinny Santa Claus (uncredited) |
| Anna Lucasta | 1949 | | Station Master (uncredited) |
| Leave It to Henry | 1949 | | Milo Williams (as Olin Howlin) |
| Hellfire | 1949 | | Bartender (uncredited) |
| Grand Canyon | 1949 | | Windy (as Olin Howlin) |
| A Connecticut Yankee in King Arthur's Court | 1949 | | Sam, the Postman (uncredited) |
| Little Women | 1949 | | Mr. Davis - Schoolteacher (uncredited) |
| Bad Men of Tombstone | 1949 | | Store Proprietor (as Olin Howlin) |
| Last of the Wild Horses | 1948 | | Remedy Williams (as Olin Howlin) |
| The Paleface | 1948 | | Jonathan Sloane, undertaker |
| Smoky Mountain Melody | 1948 | | Lum Peters (as Olin Howlin) |
| Isn't It Romantic? | 1948 | | Hotel Clerk (uncredited) |
| Station West | 1948 | | Cook (as Olin Howlin) |
| The Dude Goes West | 1948 | | Finnegan (as Olin Howlin) |
| My Dog Rusty | 1948 | | Frank Foley (uncredited) |
| The Return of the Whistler | 1948 | | Jeff Anderson (uncredited) |
| Relentless | 1948 | | Horse Doctor (uncredited) |
| I Walk Alone | 1948 | | Ed the Watchman (uncredited) |
| The Fabulous Texan | 1947 | | McGinn - Storekeeper (uncredited) |
| Wyoming | 1947 | | Cowboy Wanting Herd (uncredited) |
| Keeper of the Bees | 1947 | | Customer (as Olin Howlin) |
| The Trouble with Women | 1947 | | Mr. Pink (uncredited) |
| Living in a Big Way | 1947 | | The Morgan Gardener (uncredited) |
| For the Love of Rusty | 1947 | | Frank Foley (uncredited) |
| Angel and the Badman | 1947 | | Bradley (as Olin Howlin) |
| Apache Rose | 1947 | | Alkali (as Olin Howlin) |
| Easy Come, Easy Go | 1947 | | Gas Man (uncredited) |
| Crime Doctor's Man Hunt | 1946 | | Marcus Le Blaine (uncredited) |
| Three Wise Fools | 1946 | | Witness (uncredited) |
| Home, Sweet Homicide | 1946 | | Luke (uncredited) |
| The Strange Love of Martha Ivers | 1946 | | Newspaper Clerk (uncredited) |
| She Wrote the Book | 1946 | | Baggage Master (uncredited) |
| Colonel Effingham's Raid | 1946 | | Painter (uncredited) |
| Dakota | 1945 | | Devlin's Driver (as Olin Howlin) |
| Sing Your Way Home | 1945 | | Zany Steward (uncredited) |
| Fallen Angel | 1945 | | Joe Ellis (uncredited) |
| Senorita from the West | 1945 | | Justice of Peace (as Olin Howlin) |
| Incendiary Blonde | 1945 | | Interior Decorator (uncredited) |
| Captain Eddie | 1945 | | Census Taker (as Olin Howlin) |
| Santa Fe Saddlemates | 1945 | | Dead Eye (as Olin Howlin) |
| It's in the Bag! | 1945 | | Dr. Greengrass's Doctor (uncredited) |
| Sheriff of Cimarron | 1945 | | Pinky Snyder (as Olin Howlin) |
| Her Lucky Night | 1945 | | Prince de la Mour (as Olin Howlin) |
| Grissly's Millions | 1945 | | Andrews (uncredited) |
| She Gets Her Man | 1945 | | Hank (uncredited) |
| Can't Help Singing | 1944 | | Bigelow (as Olin Howlin) |
| The Town Went Wild | 1944 | | Bit Part (as Olin Howland) |
| Nothing But Trouble | 1944 | | Painter's Foreman (uncredited) |
| I'll Be Seeing You | 1944 | | Train Vendor (uncredited) |
| And Now Tomorrow | 1944 | | Customer (uncredited) |
| In the Meantime, Darling | 1944 | | J.P. 'Hiram' Morehousse (uncredited) |
| Sing, Neighbor, Sing | 1944 | | Joe the Barber (as Olin Howlin) |
| Allergic to Love | 1944 | | Sam Walker (as Olin Howlin) |
| Goodnight, Sweetheart | 1944 | | Slim Taylor (as Olin Howlin) |
| Man from Frisco | 1944 | | Eben Whelock (as Olin Howlin) |
| The Adventures of Mark Twain | 1944 | | Riverboat Southerner (uncredited) |
| Bermuda Mystery | 1944 | | Gas Station Owner (as Olin Howlin) |
| Twilight on the Prairie | 1944 | | Jed (as Olin Howlin) |
| Jack London | 1943 | | Mailman (uncredited) |
| The Falcon and the Co-eds | 1943 | | Goodwillie, Bluecliff Driver (as Olin Howlin) |
| The Good Fellows | 1943 | | Reynolds (as Olin Howlin) |
| The Sky's the Limit | 1943/I | | Driver (uncredited) |
| Dixie | 1943 | | Mr. Deveraux (as Olin Howlin) |
| A Stranger in Town | 1943 | | Homer Todds (as Olin Howlin) |
| The Falcon Strikes Back | 1943 | | Sheriff (uncredited) |
| Young and Willing | 1943 | | Second Cop (as Olin Howlin) |
| Lady Bodyguard | 1943 | | Dr. Saunders (as Olin Howlin) |
| Ridin' Down the Canyon | 1942 | | The Jailer (as Olin Howlin) |
| When Johnny Comes Marching Home | 1942 | | Trullers (as Olin Howlin) |
| Secrets of the Underground | 1942 | | Oscar Mayberry (as Olin Howlin) |
| You Can't Escape Forever | 1942 | | Cemetery Organist (uncredited) |
| Mrs. Wiggs of the Cabbage Patch | 1942 | | Jacob Diezal (uncredited) |
| Orchestra Wives | 1942 | | Dance Ticket-Taker (uncredited) |
| Her Cardboard Lover | 1942 | | Frank - Casino Manager (uncredited) |
| Joan of Ozark | 1942 | | Game Warden (uncredited) |
| Henry and Dizzy | 1942 | | Mr. Stevens |
| Ten Gentlemen from West Point | 1942 | | Carpenter (uncredited) |
| In Old California | 1942 | | Undetermined Minor Role (uncredited) |
| Almost Married | 1942 | | Bright |
| Dr. Broadway | 1942 | | Professor (as Olin Howlin) |
| Home in Wyomin' | 1942 | | Sunrise (as Olin Howlin) |
| The Man Who Wouldn't Die | 1942 | | Chief of Police Jonathan Meek (as Olin Howlin) |
| This Gun for Hire | 1942 | | Blair Fletcher (as Olin Howlin) |
| Blondie's Blessed Event | 1942 | uncredited | |
| Sappy Birthday | 1942 | Short | Mr. Plantem, Cemetary Plot Salesman |
| Mr. and Mrs. North | 1942 | | Undetermined Role (scenes deleted, as Olin Howlin) |
| You're in the Army Now | 1941 | | Pa - The Farmer (uncredited) |
| Two-Faced Woman | 1941 | | Frank (uncredited) |
| Ellery Queen and the Murder Ring | 1941 | | Dr. Williams (as Olin Howlin) |
| Buy Me That Town | 1941 | | Constable Sam Smedley (as Olin Howlin) |
| One Foot in Heaven | 1941 | | Train Station Master (uncredited) |
| Belle Starr | 1941 | | Jasper Trench |
| The Shepherd of the Hills | 1941 | | Corky |
| The Great Lie | 1941 | | Ed, Arizona Ranch Hand (scenes deleted) |
| Chad Hanna | 1940 | | Cisco Tridd |
| Just a Cute Kid | 1940 | Short | Dr. Clump |
| Young People | 1940 | | Station Master |
| Comin' Round the Mountain | 1940 | | Pa Blower (as Olin Howlin) |
| The Doctor Takes a Wife | 1940 | | Hotel Clerk (uncredited) |
| Young Tom Edison | 1940 | | Telegrapher (Indian Attack) (uncredited) |
| Four Wives | 1939 | | Joe - a Policeman (uncredited) |
| Days of Jesse James | 1939 | | Muncie Undersheriff |
| Gone with the Wind | 1939 | | A Carpetbagger Businessman |
| The Return of Doctor X | 1939 | | Undertaker |
| Blondie Brings Up Baby | 1939 | | Encyclopedia Salesman |
| One Hour to Live | 1939 | | Clerk (as Olin Howlin) |
| The Kid from Kokomo | 1939 | | Sam, the Whittler (uncredited) |
| Zenobia | 1939 | | Attorney Culpepper |
| Nancy Drew... Reporter | 1939 | | Police Sergeant Entwhistle |
| Made for Each Other | 1939 | | Farmer (uncredited) |
| Boy Slaves | 1939 | | 'Cookie' the Camp Cook (uncredited) |
| Ambush | 1939 | | Radio Actor (segment "Uncle Toby") (uncredited) |
| Sweethearts | 1938 | | Appleby |
| Brother Rat | 1938 | | Slim |
| The Mad Miss Manton | 1938 | | Mr. X |
| Little Tough Guy | 1938 | | Baxter |
| When Were You Born | 1938 | | Peter Finlay (Sagittarius) |
| Kentucky Moonshine | 1938 | | Tom Slack (as Olin Howlin) |
| A Trip to Paris | 1938 | | Fred (uncredited) |
| Mr. Moto's Gamble | 1938 | | Deputy Sheriff Burt (uncredited) |
| The Girl of the Golden West | 1938 | | Trinidad Joe |
| Merrily We Live | 1938 | | Jed Smith (uncredited) |
| The Old Raid Mule | 1938 | Short | Ben Cole (as Olin Howlin) |
| The Adventures of Tom Sawyer | 1938 | | Mr. Dobbins - Schoolmaster |
| Swing Your Lady | 1938 | | Hotel Proprietor |
| The Bad Man of Brimstone | 1937 | | Jardge - Stage Driver (uncredited) |
| Nothing Sacred | 1937 | | Vermont Baggage Man |
| Stand-In | 1937 | | Hotel Manager (uncredited) |
| Wife, Doctor and Nurse | 1937 | | Doorman (as Olin Howlin) |
| Stella Dallas | 1937 | | Stephen's Office Clerk (uncredited) |
| Marry the Girl | 1937 | | First Southerner |
| Mountain Music | 1937 | | Pappy Burnside (as Olin Howlin) |
| A Star Is Born | 1937 | | Judd Baker (uncredited) |
$1.3 Million
