
Person
Jock Mahoney
Acting · 1919–1989 · Chicago, Illinois, USA
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.
Known for

Hawaii Five-O
Coley Bennett

Batman
Leo

Rawhide
Captain Brian Donahoe

Emergency!
Hoyt Herrold

Simon & Simon
Oldtimer #1 in Saloon

Daniel Boone
O'Connor

The Fall Guy
Wild Dan Wilde

Tarzan
Hoby Wallington

77 Sunset Strip
Barry James

The Millionaire
Vance Ludlow
Filmography
- 2017Tarzan: Lord of the MoviesTarzan (Archive Footage)
- 2015Salamat sa AlaalaSelf (archive footage)
- 1996Tarzan at the Movies, Part 2: The Many Faces of TarzanTarzan (archive footage)
- 1984The MasterMark Richards
- 1984The Making of the StoogesSelf
- 1981Simon & SimonOldtimer #1 in Saloon
- 1981The Fall GuyWild Dan Wilde
- 1979When the West Was Fun: A Western ReunionSelf
- 1979B. J. and the Bear
- 1973The Bad BunchSgt. Berry
- 1972Kung FuDavidson
- 1972The Streets of San Francisco
- 1972BanacekAlbert Bates
- 1972Emergency!Hoyt Herrold
- 1970Tarzan's Deadly SilenceThe Colonel
- 1968The Love BugDriver
- 1968Hawaii Five-OColey Bennett
- 1968Bandolero!Stoner
- 1967The Glory StompersSmiley
- 1966TarzanHoby Wallington
- 1966BatmanLeo
- 1965Runaway GirlRandy Minola
- 1964Moro Witch DoctorJefferson Stark
- 1964Daniel BooneO'Connor
- 1964The Walls of HellLt. Jim Sorenson
- 1963CaliforniaDon Michael O'Casey
- 1963Tarzan's Three ChallengesTarzan
- 1962Tarzan Goes to IndiaTarzan
- 1961Three Blondes In His LifeDuke Wallace
- 1961GunslingerHalsey Roland
- 1960Tarzan the MagnificentCoy Banton
- 1959RawhideCaptain Brian Donahoe
- 195877 Sunset StripBarry James
- 1958Yancy DerringerYancy Derringer
- 1958Money, Women and Guns'Silver' Ward Hogan
- 1958A Time to Love and a Time to DieImmerman
- 1958The Last of the Fast GunsBrad Ellison
- 1957Slim CarterSlim Carter (Hugh Mack)
- 1957Joe DakotaThe Stranger
- 1957The Land UnknownCommander Harold 'Alan' Roberts
- 1957Battle HymnMaj. Frank Moore
- 1956Showdown at AbileneJim Trask
- 1956I've Lived BeforeJohn Bolan / Lt. Peter Stevens
- 1956Away All Boats
- 1956A Day of FuryMarshal Allan Burnett
- 1955The MillionaireVance Ludlow
- 1954The Wonderful World of DisneyDriver
- 1954Overland PacificRoss Granger
- 1954Knutzy KnightsCedric the Blacksmith
- 1954Gunfighters of the NorthwestJoe Ward
- 1953Letter to LorettaAndy Hagen
- 1952The World in His ArmsStunt Double
- 1952The Kid from Broken GunJack Mahoney
- 1952Junction CityJack Mahoney
- 1952The Rough, Tough WestBig Jack Mahoney
- 1952Laramie MountainsSwift Eagle
- 1952The Hawk of Wild RiverJack Mahoney
- 1952Smoky CanyonJack Mahoney
- 1951Pecos RiverJack Mahoney
- 1951The Lady and the BanditTavern Troublemaker
- 1951The Texas RangersDuke Fisher
- 1951Roar of the Iron HorseJim Grant
- 1951The Range RiderThe Range Rider
- 1951Santa FeCrake
- 1950Frontier OutpostLieutenant Peck (uncredited)
- 1950Lightning GunsRob Saunders
- 1950The Kangaroo KidTex Kinnane
- 1950HoedownStoney Rhodes
- 1950Texas DynamoBill Beck
- 1950Cow TownTod Jeffreys
- 1950Cody of the Pony ExpressJim Archer
- 1950The NevadanSandy
- 1950Punchy CowpunchersElmer
- 1949Renegades of the SageLieutenant Hunter
- 1949Horsemen of the SierrasBill Grant
- 1949Bandits of El DoradoTim Starling (uncredited)
- 1949Rim of the CanyonPete Reagan
- 1949Colorado TerritoryStunt Double
- 1949Lust for GoldStunts
- 1949The Blazing TrailFull-House Patterson
- 1949The Doolins of OklahomaTulsa Jack Blake
- 1949Fuelin' AroundGuard
- 1948Yellow SkyStunt Double
- 1948Adventures of Don JuanStunts
- 1948You Gotta Stay HappyStunt Double
- 1948Silver RiverStunt Double
- 1948Squareheads of the Round TableCedric the Blacksmith
- 1947The Stranger From Ponca CityHenchman Tensleep (uncredited)
- 1947Out WestArizona Kid
- 1946The Fighting FrontiersmanWaco (uncredited)
- 1946Son of the GuardsmanCaptain Kenley (uncredited)
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