List of Famous people who are 21

Robert K. Weiss is an American film and television producer. His productions include films by director John Landis, producer Lorne Michaels, and the “Z. A. Z.” team of Jim Abrahams, David Zucker, and Jerry Zucker. He also co-created the science-fiction TV series Sliders. He is a graduate of Southern Illinois University Carbondale.

James Christian is an American musician and songwriter who is perhaps best known for being the frontman of the band House of Lords. He is married to Robin Beck. They married in 1996 and have a daughter named Olivia. Christian has Italian ancestry and religiously, like his wife, is a Christian.

Satwiksairaj Rankireddy is an Indian badminton player. Rankireddy competed at the 2018 Commonwealth Games in Gold Coast, winning a gold in the mixed team event, and a silver in the men's doubles event.

Jim Gillespie is a Scottish film director. His directing work includes I Know What You Did Last Summer (1997), D-Tox (2002), and Venom (2005).