List of Famous people who are 21

Liam Kirk is an English professional ice hockey player currently on loan to Sheffield Steelers of the EIHL from the Peterborough Petes. Kirk began his career with the English Elite Ice Hockey League club the Sheffield Steelers.

Paul Roger Amos is a Welsh actor and Web series producer.

Melia Kreiling is an actress. She is known for her roles on television series such as Tyrant and The Last Tycoon, and for her starring role as Alycia in the second season of the CBS summer series Salvation. She also has a brief appearance in the film Guardians of the Galaxy.

Laurence Mason is an American stage, film and television actor. He is best known for his roles as Lord Nikon in the 1995 film Hackers, Sammy Norino on the Fox drama Prison Break, Luis Sarria in the film Ali, Halpern White on the FX crime drama The Shield, and Earl Briggs, the chauffeur in the film The Lincoln Lawyer.

Alexis Hazael Gutiérrez Torres is a Mexican professional footballer who plays as a midfielder for Liga MX club Cruz Azul.

John Sharian is an American actor. He is perhaps best known for his role in the film The Machinist (2004).

Nathaniel Lees is a New Zealand theatre actor and director and film actor of Samoan descent, best known for film roles in The Matrix Reloaded, The Matrix Revolutions and The Lord of the Rings: The Two Towers and for starring in Young Hercules as Chiron the centaur.

Ariel Rebecca Martin, known professionally as Baby Ariel, is an American social media personality, singer and actress, known for her videos on the social media platform musical.ly. She was recognized as one of the most influential people on the Internet by Time magazine in 2017, and was featured on Forbes 2017 list of top entertainment influencers.

Lilimar Hernandez, also known mononymously as Lilimar, is an American actress. She is known for her roles as Sophie in the 2015–2016 Nickelodeon television series Bella and the Bulldogs, as Sage in the 2018–2019 Nickelodeon television series Knight Squad, and as the titular protagonist of the Peacock animated television series Cleopatra in Space, which she called her "first big show".

Chisaki Morito is a Japanese pop singer, and a 14th-generation member of Japanese girl group Morning Musume and is a former member of Country Girls up until their disbandment in 2019.