All articles starting with J
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Jon H. Kaas
Jon H. Kaas, born 1937 in Fargo, North Dakota, is an American neuroscientist at Vanderbilt University known for comparative mapping of sensory and motor cortex in primates.
Jon Hamm
Jon Hamm (Jonathan Daniel Hamm, born 1971, St. Louis) is an American actor famous as Don Draper on Mad Men (2007-2015), winning two Golden Globes and a 2015 Emmy; later roles include Fargo, The Morning Show, and Your Friends & Neighbors.
Jon Hansen
Jon Hansen is an American Republican politician who serves as Speaker of the South Dakota House of Representatives, has represented District 25 since 2010, and ran for governor in 2026.
Jon Harvey
Jon Harvey (Jonathan David Harvey) is a British comedy writer, producer and broadcaster behind Count Binface, with credits including The Thick of It, Have I Got News for You and Times Radio, distinct from playwright Jonathan Harvey.
Jon Heder
Jon Heder (born 1977) is an American actor known for Napoleon Dynamite (2004), Blades of Glory, Just Like Heaven, and Pickle and Peanut; MTV Breakthrough winner.
Jon Heidenreich
Jon Heidenreich, American retired professional wrestler from Los Angeles, WWE 2003-2006 as Heidenreich; Little Johnny gimmick, poetry segments, Michael Cole segment, WWE Tag Team Champion with Road Warrior Animal (LOD) 2005.
Jon Henricks
Jon Henricks (born 1935), Australian swimmer, double gold medallist at Melbourne 1956, winning the 100 m freestyle in world record 55.4 and the 4x200 m relay; not the jazz vocalist Jon Hendricks.
Jon Hopkins
Jon Hopkins (Jonathan Julian Hopkins, born 1979, Wimbledon) is an English electronic producer and composer; albums Opalescent (1999), Immunity (2013), Singularity (2018), Music for Psychedelic Therapy (2021), RITUAL (2024); collaborator of Brian Eno, Coldplay, King Creosote.
Jon Huertas
Jon Huertas (born Jon William Scott Hofstedt, 1969) is an American actor, director, and producer, an eight-year Air Force veteran known as Esposito on Castle, Miguel on This Is Us, and Poke in Generation Kill, now directing shows like Tracker.
Jon Huntsman Jr.
Jon Huntsman Jr. (born 1960), American diplomat and 16th governor of Utah (2005-2009); U.S. ambassador to Singapore, China, and Russia; 2012 GOP presidential candidate; known for Utah's 5 percent flat-rate tax reform.
Jon Husted
Jon Husted, born in 1967, is an American Republican politician and U.S. senator from Ohio since January 2025, previously Ohio's lieutenant governor, secretary of state, and House Speaker.
Jon I. Isenberg
Jon I. Isenberg (1937–2003) was an American gastroenterologist who led research on gastric acid and duodenal bicarbonate secretion in peptic ulcer disease, first at UCLA and then UC San Diego.
Jon Jon Briones
Jon Jon Briones (Ernesto Cloma Briones Jr., born 1965, Quezon City) is a Filipino actor and singer, Miss Saigon Engineer (1989 ensemble to 2017 Broadway), Ratched's Dr. Hanover, and Hadestown's Hermes.
Jon Jones
Jon Jones, American MMA fighter, two-time UFC light heavyweight and one-time heavyweight champion, 28-1 (1 NC), retired June 2025; record reigns, USADA sanctions, and the Aspinall title dispute distinguish him.
Jon Kabat-Zinn
Jon Kabat-Zinn, American Professor of Medicine emeritus at UMass Medical School, founded MBSR (Mindfulness-Based Stress Reduction) in 1979 and the CFM in 1995; MIT molecular biology PhD under Salvador Luria, author of Full Catastrophe Living and Wherever You Go, There You Are.
Jón Kalman Stefánsson
Jón Kalman Stefánsson, an Icelandic novelist and poet born in Reykjavík in 1963, made his international breakthrough with the Trilogy About the Boy, set in remote Icelandic fishing communities.
Jon Kent (DC Comics)
Jon Kent (Jonathan Samuel Kent) is DC Comics' son of Superman and Lois Lane, created by Dan Jurgens in Convergence: Superman #2 (2015); he has been Superboy, Superman in Son of Kal-El, and now Tomorrow Man.
Jon Kitna
Jon Kitna (born 1972, Tacoma, WA) is a former NFL quarterback (Seahawks, Bengals, Lions, Cowboys, 1997-2011; 29,745 passing yards) and 2003 Comeback Player of the Year, later a high school coach and Cowboys QBs coach.
Jon Kleinberg
Jon Kleinberg is a computer scientist at Cornell University in Ithaca, New York, best known for the HITS algorithm and for work on the algorithmic aspects of the small-world phenomenon.
Jon Kobashigawa
Jon Kobashigawa is an American transplant cardiologist who directs the Heart Transplant Program at Cedars-Sinai in Los Angeles and led the 1995 pravastatin trial that made statins standard care after heart transplantation.
Jon Koncak
Jon Koncak (Jon Francis Koncak, "Jon Contract"), born 1963, American 7-foot center; 1984 Olympic gold medalist, SMU All-American, 1985 first-round pick who spent 11 NBA seasons with Atlanta and Orlando, known for his 1989 $13 million contract.
Jon Kortajarena
Jon Kortajarena Redruello (born 1985, Bilbao) is a Spanish model and actor, discovered in Barcelona in 2003, fronted Tom Ford's first menswear campaign in 2007, debuted on screen in A Single Man, and stars in El Inmortal and Machos Alfa.
Jon Kosloski
Jon Kosloski is an American NSA research scientist in quantum optics and crypto-mathematics, named in August 2024 as director of the Pentagon's UAP office, AARO.
Jon Krakauer
Jon Krakauer, American journalist and mountaineer, author of Into the Wild and Into Thin Air, his bestselling 1997 account of the 1996 Everest disaster, which he survived as a client of guide Rob Hall.
Jon Kyl
Jon Llewellyn Kyl (1942–2026), Arizona Republican congressman and senator, Senate Republican whip 2007–2013, briefly reappointed in 2018 to John McCain's seat, known for water policy and the Kavanaugh confirmation.
Jon Lajoie
Jon Lajoie, Montreal-born comedian and musician, went viral on YouTube with songs like Show Me Your Genitals, played Taco on The League for seven seasons, records as Wolfie's Just Fine, and in 2025 made viral AI-animated sketches.
Jon Landau
Jon Landau (born 1947) is an American rock critic, producer, and Bruce Springsteen's manager since 1978; wrote the 1974 'I saw rock and roll future' review, co-produced Born to Run, and received the Rock Hall's 2020 Ahmet Ertegun Award.
Jon Landau (film producer)
Jon Landau (1960-2024) was an American film producer and studio executive, longtime partner of James Cameron at Lightstorm Entertainment, who produced Titanic, Avatar, and Avatar: The Way of Water and won the Best Picture Oscar for Titanic.
Jon Ledecky
Jon Ledecky (born 1958) is an American private equity investor, co-owner and alternate governor of the NHL's New York Islanders since 2014, former Washington Capitals co-owner with Ted Leonsis, and uncle of swimmer Katie Ledecky.
Jon Lester
Jon Lester (born 1984, Tacoma, WA) is a retired MLB left-handed pitcher (2006-2021) with 200 wins, a 3.66 ERA, three World Series titles (2007, 2013 Red Sox; 2016 Cubs), a 2008 no-hitter, and a 2006 lymphoma comeback.