
Biography
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.
Acted in 81
2010s
- 2017
Tarzan: Lord of the Movies
Tarzan (Archive Footage)
1990s
- 1996
Tarzan at the Movies, Part 2: The Many Faces of Tarzan
Tarzan (archive footage)
1980s
- 1984
- 1981
1970s
- 1979
- 1973
The Bad Bunch
Sgt. Berry
- 1972
Kung Fu
Davidson · 1 episode
- 1970
Tarzan's Deadly Silence
The Colonel
1960s
- 1969
- 1968
- 1967
The Glory Stompers
Smiley
- 1966
- 1965
Runaway Girl
Randy Minola
- 1964
Moro Witch Doctor
Jefferson Stark
The Walls of Hell
Lt. Jim Sorenson
- 1963
California
Don Michael O'Casey
Tarzan's Three Challenges
Tarzan
- 1962
Tarzan Goes to India
Tarzan
- 1961
Three Blondes In His Life
Duke Wallace
Gunslinger
Halsey Roland · 1 episode
- 1960
Tarzan the Magnificent
Coy Banton
1950s
- 1959
- 1958
Money, Women and Guns
'Silver' Ward Hogan
A Time to Love and a Time to Die
Immerman
- 1957
Slim Carter
Slim Carter (Hugh Mack)
Joe Dakota
The Stranger
The Land Unknown
Commander Harold 'Alan' Roberts
Battle Hymn
Maj. Frank Moore
- 1956
I've Lived Before
John Bolan / Lt. Peter Stevens
A Day of Fury
Marshal Allan Burnett
- 1955
- 1954
Overland Pacific
Ross Granger
Knutzy Knights
Cedric the Blacksmith
Gunfighters of the Northwest
Joe Ward
- 1953
- 1952
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
- 1951
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 · 77 episodes
Santa Fe
Crake
- 1950
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
Punchy Cowpunchers
Elmer
1940s
- 1949
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
The Blazing Trail
Full-House Patterson
Fuelin' Around
Guard
- 1948
Squareheads of the Round Table
Cedric the Blacksmith
- 1947
The Stranger From Ponca City
Henchman Tensleep (uncredited)
Out West
Arizona Kid
- 1946
The Fighting Frontiersman
Waco (uncredited)
Son of the Guardsman
Captain Kenley (uncredited)
Other crew 11
1950s
- 1957
Slim Carter
Stunts
- 1952
The World in His Arms
Stunt Double
- 1951
The Lady and the Bandit
Stunt Double
The Texas Rangers
Stunts
- 1950
1940s
- 1949
Lust for Gold
Stunts
- 1948
Adventures of Don Juan
Stunts
You Gotta Stay Happy
Stunt Double
Appearances2
1980s
- 1984
The Making of the Stooges
Self
1970s
- 1979
When the West Was Fun: A Western Reunion
Self