
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
Prairie Dog
Groat
Lt. 'Irish' Finn
Mike Forbes
Mick Marion
Moose McKlintock
Tulsa Jack
Narrator (voice) (uncredited)
Hollinger
Finnegan
Posture Coach
Sleepy
Bud Dorson
Seaman
Lars
Sgt. Dudley
Art Benson
Nitro Rankin
Kewpie Blain
Mr. Adle
Taxi
An Attendant
Fritzie
Billy Sweet
Moose McCarthy
Bede Sanders
Bourke Prine
Dusty
Connors
Blackie
Ed McBain - Gunrunner (uncredited)
Pap Dennison (CSA)
Hugh Macauley (uncredited)
Small Potatoes
Sgt. Snow
CPO Ichabod Ferdinand 'Fixit' Smith
Eric
Sheriff Mervin Maitland
Spike
Fred Jasper
Big Boy
Man Shooting Pool with Bert (uncredited)
Joseph Britt
Ed Bronson (blacksmith)
Sgt. Muldoon
Jake Hardman
Swimmer Joe Holt (uncredited)
Big Boy Stover
Tex Baird
Scratchface Henchman
Tall Tale
Lon Tuttle
Champ
Gunnery Sergeant Wilmer
Danny Devlin
Sgt. Martin Wrenn
Mac
Slats (uncredited)
Red Fisk
Mars
Joe Halsey
Marblehead
Big Boy
Edgar Prouty
Slim
T-Bone
Slug Cassidy
Big Boy Frazer
Undetermined Secondary Role (scenes deleted)
Ben Roberts
Vulch McCreedy
Big Boy
Ted Wright
Baseball Player (as Big Boy Williams)
Ed Holden
Pete Jenkins
Windy Brody
Big Boy Webster
'Bull' Moran
Mike Wurgerski
Rubin Hall
Jeff Bonsell
Henry
Jim Lawson
Matthews
Paddy Dolan
Nicholas 'Nick', Annie's Boyfriend
Rogers
Steve Bromm (uncredited)
Lazarus "Cupid" Dougal
Don White (as Big Boy Williams)
Jake Halley
'Teddy' Bear
Sgt. Gibbons
Red Giddings
Panya Mankiewicz
Duke Edwards
Wagon Wheel (as Big Boy Williams)
Jeff
Sailaway
Higgins
Zeke Winslow
Bull Gumbatz
Charles Taylor
Cecil Joseph Callahan
Silent Kerry
'Softy' Blane
Moose, Deputy
Big Boy Jackson
Samson Smith
Cassidy
Tiger
Tom Duncan
Jeb Taylor
Butch McQuinn
Hal Walter
Elby Kirby
Henchman
Detective Sweeney
Conway (as Guinn Williams)
Joe, the plumber
Bugsy McHugh
Reaper
Butch
Jerry Stone
Lullaby Joslin
Teddy Bear
Buffalo
Sandy Higgins
McLean
Sweeney
Bill Williams
'Big Foot' - the wagon driver
Maxie
Luke Manning
Dance-Floor Manager
Sgt. Krims
Father of the Boys
Mike Donovan
Jeff
Baker's Cart Driver (uncredited)
Motorcycle Cop
Lefty
Gunther Potts
Salvation
Mike
Ross
Bob Hildreth
Det. Lt. Ed Flannagan
Dopey
Whistling Jim
Tucson Two-Gun Smith
Jed Acker (as Big Boy Williams)
Bull Morgan
Jones
Big Boy
Tom Butler
Smitty
Tiny Courtley
Haage
Jack Stanley
Jones
Al Wilson / Ham
Bob Wilson
Cowboy (as Big Boy Williams)
Buck Sawyer
The Cowboy
Hank
'Tiny' Baldwin
Mike Cagle
Spud Harrigan
Dick Mallory
Pvt. Archibald Allen
Happy Crofton
English Harry (as Big Boy Williams)
The Foreman
Dan Carson
Juble Butler
Borax Bill
Cowboy
Doughboy
Frank Stevens
Cuth Stewart
'Red' Cable
Jinx
Blake - the First Mate
Dud Smiley
Strangler Sullivan
Nat Sherwood
Hairoil Johnson
Dick Berney
Alvin
Spike McGafferty
Larry Connell
Bing
Cyclone Jones
Honey Smith
Big Boy Jackson
Kingford
Saddle Grease Williams
Bill 'Jellybean' Cook
Andy Fowler
Chuck Brenner
Big Boy Bronson
Billy Fargo