Jock Mahoney
Born
February 7, 1919
Died
December 14, 1989 (70 years old)
Known For
Acting
Place of Birth
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.
Beginning in 1950, Columbia management gave him starring roles in adventure serials. Mahoney contributed so much to this series that he was awarded featured billing and major supporting roles as well, first as villains and then as sympathetic characters. By 1952 Columbia was billing him as Jack Mahoney. Cowboy star Gene Autry, then working at Columbia, hired Mahoney to star in a television series. Autry's Flying A Productions filmed 79 half-hour episodes of the syndicated The Range Rider from 1951 to 1953.
For the 1958 television season, he starred in the somewhat Western Yancy Derringer series for 34 episodes, which aired on CBS. Yancy Derringer was a gentleman adventurer living in New Orleans, Louisiana, after the American Civil War. He had a Pawnee Indian companion named Pahoo Katchewa ("Wolf Who Stands in Water"), who did not speak, played by X Brands. Pahoo had saved the life of Derringer, and thereafter was responsible for Derringer's life.
In 1962, Mahoney became the 13th actor to portray Tarzan when he appeared in Tarzan Goes to India, shot on location in India. A year later, he again played the role in Tarzan's Three Challenges, shot in Thailand. Dysentery and dengue fever plagued Mahoney during the shoot in the Thai jungles, and he plummeted to 175 pounds. He needed a year and a half to regain his health. Owing to his health problems and the fact that producer Weintraub had decided to go for a "younger look" for the apeman, his contract was mutually dissolved. In the 1980s, Mahoney made guest appearances on the television series B. J. and the Bear and The Fall Guy. During the final years of his life, he was a popular guest at film conventions and autograph shows.
Mahoney died of a second stroke at age 70, two days after being involved in an automobile accident in Bremerton, Washington. His ashes were scattered into the Pacific Ocean.

Tarzan: Lord of the Movies
Tarzan (Archive Footage)
2017
Salamat sa Alaala
Self (archive footage)
2015

The Master
Mark Richards · (1 episode)
1984
The Making of the Stooges
Self
1984

Simon & Simon
Oldtimer #1 in Saloon · (1 episode)
1981

The Fall Guy
Wild Dan Wilde · (1 episode)
1981
When the West Was Fun: A Western Reunion
Self
1979

B. J. and the Bear
(2 episodes)
1979

The Bad Bunch
Sgt. Berry
1973

Kung Fu
Davidson · (1 episode)
1972

The Streets of San Francisco
(1 episode)
1972

The Streets of San Francisco
Mr. Morley · (1 episode)
1972

Banacek
Albert Bates · (1 episode)
1972

Emergency!
Hoyt Herrold · (2 episodes)
1972

Tarzan's Deadly Silence
The Colonel
1970

Hawaii Five-O
Coley Bennett · (2 episodes)
1968

Bandolero!
Stoner
1968

The Glory Stompers
Smiley
1967

Tarzan
Hoby Wallington · (4 episodes)
1966

Batman
Leo · (2 episodes)
1966

Batman
H.L. Hunter · (1 episode)
1966

Runaway Girl
Randy Minola
1965

Moro Witch Doctor
Jefferson Stark
1964

Daniel Boone
O'Connor · (1 episode)
1964

The Walls of Hell
Lt. Jim Sorenson
1964

Marine Battleground / The Marines Who Never Returned
Nick Rawlins
1963

California
Don Michael O'Casey
1963

Tarzan's Three Challenges
Tarzan
1963

Tarzan Goes to India
Tarzan
1962

Three Blondes In His Life
Duke Wallace
1961

Tarzan the Magnificent
Coy Banton
1960

Rawhide
Captain Brian Donahoe · (1 episode)
1959

Rawhide
Vance · (1 episode)
1959

77 Sunset Strip
Barry James · (1 episode)
1958

Yancy Derringer
Yancy Derringer · (34 episodes)
1958

Money, Women and Guns
'Silver' Ward Hogan
1958

A Time to Love and a Time to Die
Immerman
1958

The Last of the Fast Guns
Brad Ellison
1958

Slim Carter
Slim Carter (Hugh Mack)
1957

Joe Dakota
The Stranger
1957

The Land Unknown
Commander Harold 'Alan' Roberts
1957

Battle Hymn
Maj. Frank Moore
1957

Showdown at Abilene
Jim Trask
1956

I've Lived Before
John Bolan / Lt. Peter Stevens
1956

Away All Boats
1956

Away All Boats
Alvick
1956

A Day of Fury
Marshal Allan Burnett
1956

The Millionaire
Vance Ludlow · (1 episode)
1955

Overland Pacific
Ross Granger
1954

Knutzy Knights
Cedric the Blacksmith
1954

Gunfighters of the Northwest
Joe Ward
1954

Letter to Loretta
Andy Hagen · (1 episode)
1953

Letter to Loretta
Ernie McNally · (1 episode)
1953

Letter to Loretta
Mike Elliott · (1 episode)
1953

Letter to Loretta
Jim Vessey · (1 episode)
1953

Letter to Loretta
Kim Ryan · (1 episode)
1953

Letter to Loretta
Dan O'Hara · (1 episode)
1953

The Kid from Broken Gun
Jack Mahoney
1952

Junction City
Jack Mahoney
1952

The Rough, Tough West
Big Jack Mahoney
1952

Laramie Mountains
Swift Eagle
1952

The Hawk of Wild River
Jack Mahoney
1952

Smoky Canyon
Jack Mahoney
1952

Pecos River
Jack Mahoney
1951

The Lady and the Bandit
Tavern Troublemaker
1951

The Texas Rangers
Duke Fisher
1951

Roar of the Iron Horse
Jim Grant
1951

The Range Rider
The Range Rider · (77 episodes)
1951

Santa Fe
Crake
1951

Frontier Outpost
Lieutenant Peck (uncredited)
1950

Lightning Guns
Rob Saunders
1950

The Kangaroo Kid
Tex Kinnane
1950

Hoedown
Stoney Rhodes
1950

Texas Dynamo
Bill Beck
1950

Cow Town
Tod Jeffreys
1950

Cody of the Pony Express
Jim Archer
1950

The Nevadan
Sandy
1950

Punchy Cowpunchers
Elmer
1950

Renegades of the Sage
Lieutenant Hunter
1949

Horsemen of the Sierras
Bill Grant
1949

Bandits of El Dorado
Tim Starling (uncredited)
1949

Rim of the Canyon
Pete Reagan
1949

The Blazing Trail
Full-House Patterson
1949

The Doolins of Oklahoma
Tulsa Jack Blake
1949

Fuelin' Around
Guard
1949

Squareheads of the Round Table
Cedric the Blacksmith
1948

The Stranger From Ponca City
Henchman Tensleep (uncredited)
1947

Out West
Arizona Kid
1947

The Fighting Frontiersman
Waco (uncredited)
1946

Son of the Guardsman
Captain Kenley (uncredited)
1946