List of Famous people who are 42

Graeme Allen Brown OAM is an Australian former professional cyclist, who competed professionally between 2002 and 2016 for the Ceramica Panaria–Navigare, Belkin Pro Cycling and Drapac Professional Cycling teams.

Adam Troy Dunn, nicknamed "Big Donkey", is an American former professional baseball left fielder and first baseman. He played in Major League Baseball (MLB) for the Cincinnati Reds, Arizona Diamondbacks, Washington Nationals, Chicago White Sox, and Oakland Athletics. He is a two-time MLB All-Star.

Andrew-Lee Potts is an English actor and director. He is best known for his role as the quirky Connor Temple on ITV's British science fiction programme Primeval and Space's Canadian spinoff Primeval: New World. He also starred as the Hatter on the SyFy mini-series Alice and was a series regular on the long-running programme Ideal. Since 2006, Potts has written and directed short films through his production house, Keychain Productions. In 2008, he directed a documentary about the filming of Primeval called Through the Anomaly.

Michael Woodrow Jackson, known professionally as Oh No, is an American rapper and record producer who has released several albums on Stones Throw Records. He is half of the hip hop duo Gangrene along with The Alchemist. He is also half of the hip-hop duo The Professionals with his brother Madlib.