

Acting
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....
Highest rated appearances

The Making of the Stooges
as Self

The Love Bug
as Driver

Bandolero!
as Stoner

The Glory Stompers
as Smiley

Runaway Girl
as Randy Minola

Moro Witch Doctor
as Jefferson Stark

The Walls of Hell
as Lt. Jim Sorenson

California
as Don Michael O'Casey

Tarzan's Three Challenges
as Tarzan

Tarzan Goes to India
as Tarzan

Three Blondes In His Life
as Duke Wallace

Tarzan the Magnificent
as Coy Banton

Money, Women and Guns
as 'Silver' Ward Hogan

A Time to Love and a Time to Die
as Immerman

The Last of the Fast Guns
as Brad Ellison

Slim Carter
as Slim Carter (Hugh Mack)

Joe Dakota
as The Stranger

The Land Unknown
as Commander Harold 'Alan' Roberts

Battle Hymn
as Maj. Frank Moore

Showdown at Abilene
as Jim Trask

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

Away All Boats

Away All Boats
as Alvick

A Day of Fury
as Marshal Allan Burnett

Overland Pacific
as Ross Granger

Knutzy Knights
as Cedric the Blacksmith

Gunfighters of the Northwest
as Joe Ward

The Kid from Broken Gun
as Jack Mahoney

Junction City
as Jack Mahoney

The Rough, Tough West
as Big Jack Mahoney

Laramie Mountains
as Swift Eagle

The Hawk of Wild River
as Jack Mahoney

Smoky Canyon
as Jack Mahoney

Pecos River
as Jack Mahoney

The Lady and the Bandit
as Tavern Troublemaker

The Texas Rangers
as Duke Fisher

Roar of the Iron Horse
as Jim Grant

Santa Fe
as Crake

Frontier Outpost
as Lieutenant Peck (uncredited)

Lightning Guns
as Rob Saunders

The Kangaroo Kid
as Tex Kinnane

Hoedown
as Stoney Rhodes

Texas Dynamo
as Bill Beck

Cow Town
as Tod Jeffreys

Cody of the Pony Express
as Jim Archer

The Nevadan
as Sandy

Punchy Cowpunchers
as Elmer

Renegades of the Sage
as Lieutenant Hunter

Horsemen of the Sierras
as Bill Grant

Bandits of El Dorado
as Tim Starling (uncredited)

Rim of the Canyon
as Pete Reagan

The Blazing Trail
as Full-House Patterson

The Doolins of Oklahoma
as Tulsa Jack Blake

Fuelin' Around
as Guard

Squareheads of the Round Table
as Cedric the Blacksmith

The Stranger From Ponca City
as Henchman Tensleep (uncredited)

Out West
as Arizona Kid

The Fighting Frontiersman
as Waco (uncredited)

Son of the Guardsman
as Captain Kenley (uncredited)