Jack De Heer 💼 Ice hockey player Jack Dejohnette 💼 Jazz drummer, composer, jazz pianist, musician, percussionist Jack Delaney 💼 Boxer Jack Dempsey 💼 Boxer, actor, film actor, military officer Jack Desena 💼 Actor, television actor, voice actor Jack Dongarra 💼 Mathematician, computer scientist, engineer, university teacher Jack Doohan 💼 Racing driver, formula one driver Jack Dorsey 💼 Entrepreneur, blogger, businessperson, programmer, computer scientist, business executive, tech vip, billionaire Jack Draper 💼 Tennis player Jack Dylan Grazer 💼 Actor, television actor, film actor, voice actor Jack Edmonds 💼 Mathematician, computer scientist Jack Egers 💼 Ice hockey player Jack Eichel 💼 Ice hockey player Jack Elam 💼 Television actor, film actor, actor, military officer, military personnel Jack Endino 💼 Musician, audio engineer, singer-songwriter, guitarist, record producer Jack Falahee 💼 Actor, television actor, film actor, stage actor Jack Finney 💼 Novelist, writer, screenwriter, science fiction writer Jack Flett 💼 Lacrosse player Jack Gelineau 💼 Ice hockey player Jack Gilford 💼 Actor, television actor, stage actor, film actor Jack Gleeson 💼 Actor, film actor, television actor Jack Goldstein 💼 Painter, printmaker, photographer, performance artist, artist Jack Grealish 💼 Association football player Jack Griffo 💼 Film actor, television actor, singer, film producer, television producer Jack Grunsky 💼 Singer, singer-songwriter Jack Guest 💼 Rower Jack Haley 💼 Singer, screenwriter, film actor, stage actor Jack Hannah 💼 Screenwriter, animator, film director, actor, director Jack Harlow 💼 Rapper, singer, songwriter, record producer, actor Jack Haven 💼 Film actor, television actor Jack Hawkins 💼 Actor, film actor, stage actor, film producer, film director Jack Herer 💼 Writer, politician, activist Jack Higgins 💼 Novelist, writer, screenwriter, author, school teacher Jack Hirsh 💼 University teacher Jack Hodgins 💼 University teacher, writer Jack Hughes 💼 Ice hockey player Jack Huston 💼 Actor, film actor, stage actor, television actor, voice actor, video game actor, film director, film screenwriter, film producer Jack Irons 💼 Drummer, composer Jack Johnson 💼 Boxer Jack Kehoe 💼 Actor, television actor Jack Kelly Sr Rower 💼 Rower, entrepreneur Jack Kemp 💼 Politician, american football player, writer, canadian football player, businessperson Jack Kent Cooke 💼 Businessperson Jack Kerouac 💼 Writer, poet, novelist, screenwriter, prose writer Jack Kesy 💼 Film actor, television actor, actor, film producer Jack Ketchum 💼 Novelist, literary agent, screenwriter, writer Jack Kevorkian 💼 Physician, composer, painter, jazz musician, pathologist, politician, anatomical pathologist, polyglot Jack Kilby 💼 Inventor, university teacher, computer scientist, photographer, engineer, physicist, electronic engineer Jack Kilmer 💼 Actor, voice actor, film actor Jack Kirby 💼 Penciller, inker, comics writer, character designer, storyboard artist, animator, comics artist Jack Klugman 💼 Film actor, screenwriter, stage actor, television actor, director, military officer, actor, film director, military personnel, comedian, writer Jack Kornfield 💼 Writer, psychologist Jack Kramer 💼 Tennis player, sports journalist Jack Kruschen 💼 Film actor, television actor Jack Lalanne 💼 Nutritionist, businessperson, inventor, chiropractor, dietitian, actor, television actor, writer, athlete, bodybuilder, entrepreneur Jack Langedijk 💼 Actor Jack Laugher 💼 Competitive diver, swimmer Jack Laviolette 💼 Ice hockey player Jack Layton 💼 Politician, university teacher, political scientist, legislator Jack Lemmon 💼 Film actor, character actor, television actor, actor, television presenter, stage actor, musician, director, film producer, producer, comedian