List of Famous people who are 21

Robert Cartwright is an English art director. He was nominated for four Academy Awards in the category Best Art Direction.

Burt Dalton is a visual effects supervisor. Dalton and his fellow visual effects artists are nominated for an Academy Award for Best Visual Effects for the 2013 film Star Trek Into Darkness. He has won 1 Oscar for The Curious Case of Benjamin Button along with 3 other nominations.

Habibullah Khan Karzai is a powerful Afghan leader from the Popalzai clan. He is an elder and considered a leader of the Karzai family. His younger brother, Abdul Ahad Karzai, was the father of President Hamid Karzai.

Patrick Henry Diamond is an American theoretical plasma physicist. He is currently a professor at the University of California, San Diego, and a director of the Fusion Theory Institute at the National Fusion Research Institute in Daejeon, South Korea, where the KSTAR Tokamak is operated.

Mark Weingarten is an American production sound mixer. He has been nominated for three Academy Awards in the category Best Sound Mixing, winning in 2017 for Dunkirk. He has worked on more than 80 films since 1987. In addition, he won an Emmy for the television show The West Wing.

Michael Herz is an American film producer, director and screenwriter. With Lloyd Kaufman, the two are the co-founders of Troma Entertainment, the world's longest running independent film studio, known for their comedic horror films, including the cult favorite Toxic Avenger series and Tromeo and Juliet.

Stephen A. Rotter is a film editor who won at the 56th Academy Awards in the category of Best Film Editing. He was one of the five film editors to win for the film The Right Stuff. He shared it with Glenn Farr, Lisa Fruchtman, Tom Rolf and Douglas Stewart.

Julie Gavras is a French–Greek film director and screenwriter. She is best known for her film Blame It on Fidel (2006).

Aaron Rochin is an American sound engineer. He won an Oscar for Best Sound and was nominated for eight more in the same category.