| Title | Year | Status | Character |
|---|
| Blaze Away | 1922/I | | Big Boy |
| Remembrance | 1922 | | |
| The Trail of Hate | 1922 | | Silent Kerry |
| The Cowboy King | 1922 | | Dud Smiley (as Big Boy Williams) |
| Rounding Up the Law | 1922 | | Larry Connell (as Big Boy Williams) |
| Across the Border | 1922 | | Andy Fowler (as Big Boy Williams) |
| Western Firebrands | 1921 | | Billy Fargo (as Big Boy Williams) |
| The Vengeance Trail | 1921 | | Big Boy Bronson (as Big Boy Williams) |
| The Jack Rider | 1921 | | Frank Stevens (as Big Boy Williams) |
| Godless Men | 1920 | | Seaman (uncredited) |
| Cupid the Cowpuncher | 1920 | | Hairoil Johnson (as Guinn Williams) |
| Jubilo | 1919 | | Man Shooting Pool with Bert (uncredited) |
| Almost a Husband | 1919 | | |
| Devotion of a Boy | | | |
| Buttons and Her Beaus | 1962 | TV Movie | |
| The Comancheros | 1961 | | Ed McBain - Gunrunner (uncredited) |
| The Alamo | 1960 | | Lt. 'Irish' Finn (as Guinn Williams) |
| Five Bold Women | 1960 | | Big Foot |
| Walt Disney's Wonderful World of Color | 1960 | TV Series | Buffalo |
| Home from the Hill | 1960 | | Hugh Macauley (uncredited) |
| The Restless Gun | 1959 | TV Series | Jeff Bonsell |
| Wagon Train | 1959 | TV Series | Calvin Bryngelson |
| Tales of Wells Fargo | 1958 | TV Series | Mike Forbes |
| The Adventures of Rin Tin Tin | 1958 | TV Series | Sgt. Muldoon |
| Sugarfoot | 1958 | TV Series | Moose McKlintock |
| Circus Boy | 1956-1957 | TV Series | Pete, the Canvasman |
| Cheyenne | 1957 | TV Series | Prairie Dog |
| The Sheriff of Cochise | 1957 | TV Series | Jones |
| The Hired Gun | 1957 | | Elby Kirby |
| Gunsmoke | 1957 | TV Series | Groat |
| The Life of Riley | 1956 | TV Series | Flanagan |
| Man from Del Rio | 1956 | | Fred Jasper (uncredited) |
| My Friend Flicka | 1955-1956 | TV Series | Jeb Taylor |
| Hidden Guns | 1956 | | Kingford |
| Adventures of Wild Bill Hickok | 1955 | TV Series | Tulsa Jack |
| The Outlaw's Daughter | 1954 | | Moose, Deputy |
| Massacre Canyon | 1954 | | Private Peaceful Allen (as Guinn Williams) |
| Southwest Passage | 1954 | | Tall Tale |
| Hangman's Knot | 1952 | | Smitty |
| Springfield Rifle | 1952 | | Sgt. Snow |
| Man in the Saddle | 1951 | | Bourke Prine (as Guinn'Big Boy'Williams) |
| Al Jennings of Oklahoma | 1951 | | Lon Tuttle (as Guinn 'Big Boy' Williams) |
| Rocky Mountain | 1950 | | Pap Dennison (CSA) (as Guinn Williams) |
| Hoedown | 1950 | | Small Potatoes |
| Brimstone | 1949 | | Deputy Art Benson |
| Bad Men of Tombstone | 1949 | | Red Fisk |
| Smoky Mountain Melody | 1948 | | Saddle Grease Williams |
| Station West | 1948 | | Mick |
| Road to the Big House | 1947 | | Butch McQuinn (as Guinn Williams) |
| Smoky River Serenade | 1947 | | Wagon Wheel (as Big Boy Williams) |
| King of the Wild Horses | 1947 | | Jed Acker (as Big Boy Williams) |
| Over the Santa Fe Trail | 1947 | | Big Boy Jackson |
| Singin' in the Corn | 1946 | | Hank |
| Singing on the Trail | 1946 | | Big Boy Webster |
| Cowboy Blues | 1946 | | Big Boy Stover |
| That Texas Jamboree | 1946 | | Big Boy Frazer |
| Throw a Saddle on a Star | 1946 | | Big Boy |
| Song of the Prairie | 1945 | | Big Boy Jackson |
| Rhythm Round-Up | 1945 | | Zeke Winslow |
| The Man Who Walked Alone | 1945 | | Champ |
| Sing Me a Song of Texas | 1945 | | Big Boy |
| Belle of the Yukon | 1944 | | Sheriff Mervin Maitland (as Guinn Williams) |
| Nevada | 1944 | | Dusty |
| Swing in the Saddle | 1944 | | 'Tiny' Baldwin (as Guinn Williams) |
| Cowboy and the Senorita | 1944 | | 'Teddy' Bear |
| Cowboy Canteen | 1944 | | Spud Harrigan (as Guinn [Big Boy] Williams) |
| Hands Across the Border | 1944 | | Teddy Bear |
| Minesweeper | 1943 | | CPO Ichabod Ferdinand 'Fixit' Smith (as Guinn Williams) |
| The Desperadoes | 1943 | | Nitro Rankin (as Guinn {Big Boy} Williams) |
| American Empire | 1942 | | Sailaway (as Guinn Williams) |
| Silver Queen | 1942 | | Blackie |
| Between Us Girls | 1942 | | Father of the Boys |
| Lure of the Islands | 1942 | | Jinx |
| Mr. Wise Guy | 1942 | | Luke Manning (as Guinn Williams) |
| The Bugle Sounds | 1942 | | Sgt. Krims (as Guinn Williams) |
| Mr. Bug Goes to Town | 1941 | | Narrator (voice, uncredited) |
| Swamp Water | 1941 | | Bud Dorson (as Guinn Williams) |
| You'll Never Get Rich | 1941 | | Kewpie Blain (as Guinn Williams) |
| Riders of Death Valley | 1941 | | Borax Bill |
| Billy the Kid | 1941 | | Ed Bronson (as Guinn Williams) |
| Country Fair | 1941 | | Gunther Potts |
| Six Lessons from Madame La Zonga | 1941 | | Alvin |
| Santa Fe Trail | 1940 | | Windy Brody |
| Dulcy | 1940 | | Henry |
| Pleased to Mitt You | 1940 | Short | Chuck Brenner |
| Money and the Woman | 1940 | | Mr. Adler, the Bank Guard |
| Wagons Westward | 1940 | | Jake Hardman (as 'Big Boy' Guinn Williams) |
| Alias the Deacon | 1940 | | Bull Gumbatz (as Guinn Williams) |
| Virginia City | 1940 | | 'Marblehead' |
| Castle on the Hudson | 1940 | | Mike Cagle |
| The Fighting 69th | 1940 | | Paddy Dolan |
| Legion of Lost Flyers | 1939 | | Jake Halley |
| Blackmail | 1939 | | Moose McCarthy (as Guinn Williams) |
| Fugitive at Large | 1939 | | Conway (as Guinn Williams) |
| Bad Lands | 1939 | | Billy Sweet (as Guinn Williams) |
| Mutiny on the Blackhawk | 1939 | | Blake - the First Mate |
| 6,000 Enemies | 1939 | | Maxie (as Guinn Williams) |
| Street of Missing Men | 1939 | | T-Bone |
| Dodge City | 1939 | | Tex Baird |
| Pardon Our Nerve | 1939 | | Samson Smith (as Guinn Williams) |
| I Demand Payment | 1938 | | Happy Crofton |
| Down in 'Arkansaw' | 1938 | | Juble Butler (as Guinn Williams) |
| Hold That Co-ed | 1938 | | Mike (as Guinn Williams) |
| Army Girl | 1938 | | Sgt. Harry Ross (as Guinn Williams) |
| Professor Beware | 1938 | | Motorcycle Cop (uncredited) |
| The Marines Are Here | 1938 | | Sgt. Gibbons (as Guinn Williams) |
| You and Me | 1938 | | Taxi, Tough Lothario (as Guinn Williams) |
| Everybody's Doing It | 1938 | | 'Softy' Blane (as Guinn Williams) |
| The Bad Man of Brimstone | 1937 | | 'Vulch' McCreedy (as Guinn Williams) |
| Wise Girl | 1937 | | Mike (as Guinn Williams) |
| My Dear Miss Aldrich | 1937 | | An Attendant (as Guinn Williams) |
| Big City | 1937 | | Danny Devlin (as Guinn Williams) |
| She's No Lady | 1937 | | Jeff (as Guinn Williams) |
| The Singing Marine | 1937 | | Dopey |
| Flying Fists | 1937 | | Slug Cassidy (as Guinn Williams) |
| Girls Can Play | 1937 | | Lieutenant Flannigan |
| Dangerous Holiday | 1937 | | Duke Edwards |
| A Star Is Born | 1937 | | Posture Coach (as Guinn Williams) |
| Don't Tell the Wife | 1937 | | Lazarus Hubert Gregory 'Cupid' Dougal (as Guinn Williams) |
| You Only Live Once | 1937 | | Roger (as Guinn Williams) |
| Career Woman | 1936 | | Bede Sanders |
| North of Nome | 1936 | | Haage |
| End of the Trail | 1936 | | Bob Hildreth |
| The Big Game | 1936 | | Pete Jenkins (as Guinn Williams) |
| The Vigilantes Are Coming | 1936 | | Salvation |
| Grand Jury | 1936 | | Joseph Britt |
| Kelly the Second | 1936 | | Cecil Callahan (as Guinn Williams) |
| The Champ's a Chump | 1936 | Short | Spike |
| Crashing Through Danger | 1936 | | Slim (as Guinn Williams) |
| Love on a Bet | 1936 | scenes deleted | |
| Muss 'em Up | 1936 | | 'Red' Cable (as Big Boy Williams) |
| The Littlest Rebel | 1935 | | Sgt. Dudley (as Guinn Williams) |
| Miss Pacific Fleet | 1935 | | Nicholas 'Nick' - Annie's Boyfriend (as Guinn Williams) |
| Gun Play | 1935 | | Bill Williams (as Big Boy Williams) |
| The Law of 45's | 1935 | | Tucson Two-Gun Smith (as Big Boy Williams) |
| Powdersmoke Range | 1935 | | Lullaby Joslin (as Guinn Williams) |
| Here Comes Cookie | 1935 | | Big Boy (as 'Big Boy' Williams) |
| Danger Trails | 1935 | | Bob Wilson (as Big Boy Williams) |
| Society Fever | 1935 | | Edgar Prouty |
| The Glass Key | 1935 | | Jeff (as Guinn Williams) |
| Village Tale | 1935 | | Ben Roberts (as Guinn Williams) |
| One in a Million | 1935 | | Spike McGafferty |
| Private Worlds | 1935 | | Jerry |
| Big Boy Rides Again | 1935 | | Tom (as Big Boy Williams) |
| The Silver Streak | 1934 | | Higgins (as Guinn Williams) |
| Cowboy Holiday | 1934 | | Buck Sawyer (as Big Boy Williams) |
| Flirtation Walk | 1934 | | 'Sleepy' (as Guinn Williams) |
| Thunder Over Texas | 1934 | | Ted Wright (as 'Big Boy' Williams) |
| Romance in the Rain | 1934 | | Panya Mankiewicz |
| Here Comes the Navy | 1934 | | Dance-Floor Manager (as Guinn Williams) |
| Half a Sinner | 1934 | | 'Bull' Moran |
| Cheaters | 1934 | | Detective Sweeney (as Guinn Williams) |
| The Undie-World | 1934 | Short | Bugsy McHugh (as Big Boy Williams) |
| Palooka | 1934 | | Slats (uncredited) |
| The Mystery Squadron | 1933 | | Bill 'Jellybean' Cook (as 'Big Boy' Williams) |
| College Coach | 1933 | | Matthews (as Guinn Williams) |
| Rafter Romance | 1933 | | Fritzie (as Guinn Williams) |
| Man of the Forest | 1933 | | Big Boy (as Guinn Williams) |
| Laughing at Life | 1933 | | Jones (as Guinn Williams) |
| The Phantom Broadcast | 1933 | | Sandy Higgins (as Big Boy Williams) |
| The Devil Is Driving | 1932 | | Mac |
| Boys Will Be Boys | 1932 | Short | |
| You Said a Mouthful | 1932 | | Joe Holt - a Swimming Champion (uncredited) |
| Heritage of the Desert | 1932 | | Lefty - Henchman (as Guinn Williams) |
| 70,000 Witnesses | 1932 | | Connors (as Guinn Williams) |
| Drifting | 1932 | | Bing (as Gwynn Williams) |
| Polly of the Circus | 1932 | | Eric (as Guinn Williams) |
| Ladies of the Jury | 1932 | | Steve Bromm (uncredited) |
| Running Hollywood | 1932 | Short | Scratchface Henchman |
| War Mamas | 1931 | Short | Doughboy |
| The Phantom | 1931 | | Dick Mallory (as Guinn Williams) |
| Catch-As Catch-Can | 1931 | Short | Strangler Sullivan (as Guinn Williams) |
| The Great Meadow | 1931 | | Rubin Hall (as Guinn Williams) |
| The Bachelor Father | 1931 | | Richard 'Dick' Berney (as Guinn Williams) |
| College Lovers | 1930 | | Tiny Courtley (as Guinn Williams) |
| Liliom | 1930 | | Hollinger (as Guinn Williams) |
| The Bad Man | 1930 | | Red Giddings (as Guinn Williams) |
| The Big Fight | 1930 | | Tiger (as Guinn Williams) |
| City Girl | 1930 | | Reaper |
| The Forward Pass | 1929 | | Honey Smith (as Guinn Williams) |
| Lucky Star | 1929 | | Sgt. Martin Wrenn |
| From Headquarters | 1929 | | Gunnery Sgt. Wilmer (as Guinn Williams) |
| My Man | 1928 | | Joe Halsey (as Guinn Williams) |
| Noah's Ark | 1928 | | Al / Ham (as Gwynn Williams) |
| Beggars of Life | 1928 | | Baker's Cart Driver (uncredited) |
| Vamping Venus | 1928 | | Mars (as Big Boy Williams) |
| Ladies' Night in a Turkish Bath | 1928 | | Sweeney (as Guinn Williams) |
| Burning Daylight | 1928 | | English Harry (as Big Boy Williams) |
| The College Widow | 1927 | | Don White (as Big Boy Williams) |
| The Down Grade | 1927 | | Ed Holden |
| Lightning | 1927 | | Cuth Stewart (as Guinn Williams) |
| The Woman Who Did Not Care | 1927 | | Lars (as Guinn Williams) |
| Babe Comes Home | 1927 | | Baseball Player (as Big Boy Williams) |
| Snowbound | 1927 | | Bull Morgan (as Guinn Williams) |
| Arizona Bound | 1927 | | Cowboy |
| Backstage | 1927 | | Mike Donovan (as Guinn Williams) |
| Slide, Kelly, Slide | 1927 | | McLean (as Guinn Williams) |
| Quarantined Rivals | 1927 | | Joe, the plumber (as Big Boy Williams) |
| The Desert's Toll | 1926 | as Guinn Williams | |
| Brown of Harvard | 1926 | | Hal Walters (as Guinn Williams) |
| Big Stunt | 1925 | | |
| Courage of Wolfheart | 1925 | | |
| Riders of the Sand Storm | 1925 | | The Cowboy |
| Rose of the Desert | 1925 | as Big Boy Williams | |
| Whistling Jim | 1925 | as Big Boy Williams | |
| Black Cyclone | 1925 | | Jim Lawson (as Guinn Williams) |
| Sporting West | 1925 | | |
| Bad Man from Bodie | 1925 | Short | |
| Wolfheart's Revenge | 1925 | | Jack Stanley (as Big Boy Williams) |
| Fangs of Wolfheart | 1925 | | |
| Red Blood and Blue | 1925 | | Tom Butler (as Big Boy Williams) |
| Big Moments from Little Pictures | 1924 | Short as Guinn Williams | |
| The Eagle's Claw | 1924 | | Dan Carson (as Big Boy Williams) |
| The Avenger | 1924 | | Nat Sherwood (as Big Boy Williams) |
| Uncensored Movies | 1923 | Short | |
| $1,000 Reward | 1923 | | |
| End of the Rope | 1923 | | |
| Riders at Night | 1923 | | |
| Cyclone Jones | 1923 | | Cyclone Jones (as Big Boy Williams) |
| The Freshie | 1922 | | Charles Taylor |
| The Ropin' Fool | 1922 | Short | The Foreman |
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