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, ...
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The Land Unknown
As Commander Harold 'Alan' Roberts
Away All Boats
Tarzan the Magnificent
As Coy Banton
When the West Was Fun: A Western Reunion
As Self
Battle Hymn
As Maj. Frank Moore
A Time to Love and a Time to Die
As Immerman
Tarzan Goes to India
As Tarzan
Tarzan's Three Challenges
As Tarzan
The Bad Bunch
As Sgt. Berry
The Glory Stompers
As Smiley
Money, Women and Guns
As 'Silver' Ward Hogan
Showdown at Abilene
As Jim Trask
The Doolins of Oklahoma
As Tulsa Jack Blake
The Kangaroo Kid
As Tex Kinnane
Squareheads of the Round Table
As Cedric the Blacksmith
Fuelin' Around
As Guard
Punchy Cowpunchers
As Elmer
I've Lived Before
As John Bolan / Lt. Peter Stevens
Marine Battleground
As Nick Rawlins
Knutzy Knights
As Cedric the Blacksmith
A Day of Fury
As Marshal Allan Burnett
The Last of the Fast Guns
As Brad Ellison
Three Blondes In His Life
As Duke Wallace
Joe Dakota
As The Stranger
Overland Pacific
As Ross Granger
Moro Witch Doctor
As Jefferson Stark
The Making of the Stooges
As Self
The Texas Rangers
As Duke Fisher
Out West
As Arizona Kid
Slim Carter
As Slim Carter (Hugh Mack)
The Rough, Tough West
As Big Jack Mahoney
Pecos River
As Jack Mahoney
Hoedown
As Stoney Rhodes
Salamat sa Alaala
As Self (archive footage)
Bandolero!
As Stoner
Smoky Canyon
As Jack Mahoney
Frontier Outpost
As Lieutenant Peck (uncredited)
The Walls of Hell
As Lt. Jim Sorenson
Tarzan's Deadly Silence
As The Colonel
The Nevadan
As Sandy
The Fighting Frontiersman
As Waco (uncredited)
The Stranger From Ponca City
As Henchman Tensleep (uncredited)
The Blazing Trail
As Full-House Patterson
The Hawk of Wild River
As Jack Mahoney
Bandits of El Dorado
As Tim Starling (uncredited)
The Kid from Broken Gun
As Jack Mahoney
Laramie Mountains
As Swift Eagle
California
As Don Michael O'Casey
Cow Town
As Tod Jeffreys
Cody of the Pony Express
As Jim Archer
Roar of the Iron Horse
As Jim Grant
Runaway Girl
As Randy Minola
Junction City
As Jack Mahoney
Texas Dynamo
As Bill Beck
Renegades of the Sage
As Lieutenant Hunter
Horsemen of the Sierras
As Bill Grant
Lightning Guns
As Rob Saunders
Santa Fe
As Crake
Rim of the Canyon
As Pete Reagan
Gunfighters of the Northwest
As Joe Ward
The Lady and the Bandit
As Tavern Troublemaker
Son of the Guardsman
As Captain Kenley (uncredited)
The Master
As Mark Richards
Simon & Simon
As Oldtimer #1 in Saloon
B. J. and the Bear
Kung Fu
As Davidson
Emergency!
As Hoyt Herrold
The Streets of San Francisco
Hawaii Five-O
As Coley Bennett
Tarzan
As Hoby Wallington
Batman
As Leo
Daniel Boone
As O'Connor
Rawhide
As Captain Brian Donahoe
Yancy Derringer
As Yancy Derringer
77 Sunset Strip
As Barry James
The Millionaire
As Vance Ludlow
Letter to Loretta
As Andy Hagen
The Range Rider
As The Range Rider
The Fall Guy
As Wild Dan Wilde
Banacek
As Albert Bates