
Actor
Born February 7, 1919 in Chicago, Illinois, USA
Jacques Joseph O'Mahoney, known professionally as Jock Mahoney, was an American actor and stuntman. He starred in two Western television series, The Range Rider and Yancy Derringer. He played Tarzan in two feature films and was associated in various capacities with several other Tarzan productions. He was sometimes credited as Jack O'Mahoney or Jock O'Mahoney. Jock entered the University of Iowa in Iowa City and excelled at swimming and diving, but dropped out to enlist in the United States Marine Corps when World War II began. He served as a pilot, flight instructor, and war correspondent. After his discharge from the Marine Corps, Mahoney moved to Los Angeles, and for a time was a horse breeder. However, he soon became a movie stuntman, doubling for Gregory Peck, Errol Flynn, and John Wayne. Most of Mahoney's films of the late 1940s and early 1950s were produced by Columbia Pictures. Like many Columbia contract players, Mahoney worked in the studio's two-reel comedies. Beginning in 1947, he starred with the Three Stooges in their films Out West, Squareheads of the Round Table (and its remake, Knutzy Knights), Fuelin' Around, and Punchy Cowpunchers.

Tarzan: Lord of the Movies
Tarzan (Archive Footage)

Tarzan at the Movies, Part 2: The Many Faces of Tarzan
Tarzan (archive footage)

The Master
Mark Richards

The Making of the Stooges
Self

Simon & Simon
Oldtimer #1 in Saloon

The Fall Guy
Wild Dan Wilde

When the West Was Fun: A Western Reunion
Self

B. J. and the Bear

The Bad Bunch
Sgt. Berry

Kung Fu
Davidson

The Streets of San Francisco

Banacek
Albert Bates

Emergency!
Hoyt Herrold

Tarzan's Deadly Silence
The Colonel

The Love Bug
Driver

Hawaii Five-O
Coley Bennett

Bandolero!
Stoner

The Glory Stompers
Smiley

Tarzan
Hoby Wallington

Batman
Leo

Runaway Girl
Randy Minola

Moro Witch Doctor
Jefferson Stark

Daniel Boone
O'Connor

The Walls of Hell
Lt. Jim Sorenson

California
Don Michael O'Casey

Tarzan's Three Challenges
Tarzan

Tarzan Goes to India
Tarzan

Three Blondes In His Life
Duke Wallace

Gunslinger
Halsey Roland

Tarzan the Magnificent
Coy Banton

Rawhide
Captain Brian Donahoe

77 Sunset Strip
Barry James

Yancy Derringer
Yancy Derringer

Money, Women and Guns
'Silver' Ward Hogan

A Time to Love and a Time to Die
Immerman

The Last of the Fast Guns
Brad Ellison

Slim Carter
Slim Carter (Hugh Mack)

Joe Dakota
The Stranger

The Land Unknown
Commander Harold 'Alan' Roberts

Battle Hymn
Maj. Frank Moore

Showdown at Abilene
Jim Trask

I've Lived Before
John Bolan / Lt. Peter Stevens

Away All Boats

A Day of Fury
Marshal Allan Burnett

The Millionaire
Vance Ludlow

The Wonderful World of Disney
Driver

Overland Pacific
Ross Granger

Knutzy Knights
Cedric the Blacksmith

Gunfighters of the Northwest
Joe Ward

Letter to Loretta
Andy Hagen

The World in His Arms

The Kid from Broken Gun
Jack Mahoney

Junction City
Jack Mahoney

The Rough, Tough West
Big Jack Mahoney

Laramie Mountains
Swift Eagle

The Hawk of Wild River
Jack Mahoney

Smoky Canyon
Jack Mahoney

Pecos River
Jack Mahoney

The Lady and the Bandit
Tavern Troublemaker

The Texas Rangers
Duke Fisher

Roar of the Iron Horse
Jim Grant

The Range Rider
The Range Rider

Santa Fe
Crake

Frontier Outpost
Lieutenant Peck (uncredited)

Lightning Guns
Rob Saunders

The Kangaroo Kid
Tex Kinnane

Hoedown
Stoney Rhodes

Texas Dynamo
Bill Beck

Cow Town
Tod Jeffreys

Cody of the Pony Express
Jim Archer

The Nevadan
Sandy

Punchy Cowpunchers
Elmer

Renegades of the Sage
Lieutenant Hunter

Horsemen of the Sierras
Bill Grant

Bandits of El Dorado
Tim Starling (uncredited)

Rim of the Canyon
Pete Reagan

Colorado Territory

Lust for Gold

The Blazing Trail
Full-House Patterson

The Doolins of Oklahoma
Tulsa Jack Blake

Fuelin' Around
Guard

Yellow Sky

Adventures of Don Juan

You Gotta Stay Happy

Silver River

Squareheads of the Round Table
Cedric the Blacksmith

The Stranger From Ponca City
Henchman Tensleep (uncredited)

Out West
Arizona Kid

The Fighting Frontiersman
Waco (uncredited)

Son of the Guardsman
Captain Kenley (uncredited)