
From Wikipedia
Guinn Terrell Williams Jr. (April 26, 1899 – June 6, 1962) was an American actor who appeared in memorable westerns such as Dodge City (1939), Santa Fe Trail (1940), and The Comancheros (1961). He was nicknamed "Big Boy" as he was 6' 2" and had a muscular build from years of working on ranches and playing semi-pro and professional baseball.
Williams made his screen debut in the 1919 comedy, Almost A Husband, with Will Rogers and Cullen Landis, and was featured in a large supporting role ten years later in Frank Borzage's Lucky Star with Janet Gaynor and Charles Farrell. Throughout the 1920s Williams would have a string of successful films, mostly westerns.
He then appeared in The Great Meadow alongside Johnny Mack Brown, which was Brown's breakout film. Throughout the 1930s, Williams acted in supporting roles, mostly in westerns, sports, or outdoor dramas. Although not the lead actor in any of them, he was always employed, and was successful as a supporting actor. He often played alongside Hoot Gibson and Harry Carey during that period. In 1941, he became one of many actors cast by Universal Pictures in their large film series, Riders of Death Valley. From the late 1930s to the mid-1940s, Williams appeared in supporting roles in a number of A-pictures, sometimes with high billing, such as You Only Live Once, and in Columbia's first Technicolour film The Desperadoes (1943).
Williams was frequently teamed with Alan Hale, Sr. as sidekicks to Errol Flynn in several of his pictures. In 1960, he was cast in the epic film The Alamo and in Home from the Hill with Robert Mitchum. His last role was opposite his close friend John Wayne and Stuart Whitman in The Comancheros.
Calvin Bryngelson
Mike Forbes
Prairie Dog
Groat
Sgt. Krims
Fred Jasper
Moose McKlintock
Finnegan
Jeff
Sgt. Snow
Samson Smith
Dance-Floor Manager
An Attendant
Ben Roberts
Panya Mankiewicz
Cassidy
Sgt. Muldoon
Joe Halsey
Tulsa Jack
Father of the Boys
Blackie
Steve Bromm (uncredited)
Sgt. Dudley
Marblehead
Big Boy Jackson
Hugh Macauley (uncredited)
McLean
Sleepy
Haage
Jeff Bonsell
Eric
Big Boy
Henchman
Bud Dorson
Big Boy Frazer
Nitro Rankin
Tom Duncan
Edgar Prouty
Bourke Prine
Red Fisk
Wagon Wheel (as Big Boy Williams)
Big Boy
Reaper
Big Boy
Lon Tuttle
Slug Cassidy
Jim Lawson
Slats (uncredited)
Tex Baird
Swimmer Joe Holt (uncredited)
Butch McQuinn
Buffalo
Ted Wright
Jones
Rubin Hall
Joseph Britt
Undetermined Secondary Role (scenes deleted)
Bull Gumbatz
'Softy' Blane
Ed McBain - Gunrunner (uncredited)
Baker's Cart Driver (uncredited)
Martin Wrenn
Lt. 'Irish' Finn
Cecil Joseph Callahan
Elby Kirby
Lefty
Big Boy Stover
'Bull' Moran
Pete Jenkins
Taxi
Zeke Winslow
Dopey
Sandy Higgins
Mike Wurgerski
Sweeney
Conway (as Guinn Williams)
Hollinger
Tiger
Spike
Posture Coach
Hal Walter
'Tiny' Baldwin
Art Benson
Jake Hardman
Jeb Taylor
Mars
Hank
'Big Foot' - the wagon driver
Bugsy McHugh
Danny Devlin
Mick Marion
Fritzie
Scratchface Henchman
The Cowboy
Don White (as Big Boy Williams)
Luke Manning
Juble Butler
Ed Holden
Man Shooting Pool with Bert (uncredited)
Ross
Larry Connell
Bob Hildreth
Buck Sawyer
Henry
Connors
Paddy Dolan
Al Wilson / Ham
Kewpie Blain
Windy Brody
The Foreman
Big Boy
Jones
Dusty
CPO Ichabod Ferdinand 'Fixit' Smith
Narrator (voice) (uncredited)
Det. Lt. Ed Flannagan
Pap Dennison (CSA)
Mike Donovan
Tall Tale
Rogers
Matthews
Jinx
Detective Sweeney
Maxie
Saddle Grease Williams
Joe, the plumber
Ed Bronson (blacksmith)
Andy Fowler
Smitty
Bill 'Jellybean' Cook
Baseball Player (as Big Boy Williams)
Mike Cagle
Pvt. Archibald Allen
Higgins
Sheriff Mervin Maitland
Dan Carson
Moose McCarthy
Alvin
Jack Stanley
Tom Butler
Mike
Motorcycle Cop
Teddy Bear
Bob Wilson
'Teddy' Bear
Whistling Jim
Cowboy (as Big Boy Williams)
Lazarus "Cupid" Dougal
Jed Acker (as Big Boy Williams)
Jerry Stone
Cowboy
English Harry (as Big Boy Williams)
Cuth Stewart
Sailaway
Nat Sherwood
Champ
Kingford
Borax Bill
Mr. Adle
Dud Smiley
Charles Taylor
Nicholas 'Nick', Annie's Boyfriend
Vulch McCreedy
'Red' Cable
Jeff
Red Giddings
Blake - the First Mate
Bede Sanders
Slim
Small Potatoes
Moose, Deputy
Dick Mallory
Spud Harrigan
Mac
Billy Sweet
Big Boy Jackson
Sgt. Gibbons
Frank Stevens
Honey Smith
Cyclone Jones
Jake Halley
Tucson Two-Gun Smith
Seaman
Bill Williams
Tiny Courtley
Dick Berney
Butch
Strangler Sullivan
Bull Morgan
Doughboy
Gunnery Sergeant Wilmer
Happy Crofton
Lullaby Joslin
Big Boy Bronson
Big Boy Webster
Bing
Lars
Spike McGafferty
T-Bone
Gunther Potts
Salvation
Hairoil Johnson
Chuck Brenner
Duke Edwards
Silent Kerry
Billy Fargo