List of Famous people who are 21

Nancy Haigh is an American set decorator who has received eight Academy Award nominations, and won two for her work on Bugsy and Once Upon a Time in Hollywood.

Jean Westwood is a retired British ice dancer. With partner Lawrence Demmy, she was the World Champion for four consecutive years, 1952 - 1955, and European Champion in 1954 and 1955. She later became an elite-level skating coach in the United States and Canada.

Guo Xinwa is a Chinese badminton player. Guo won 2018 Asian Junior Championships in the mixed doubles with partner Liu Xuanxuan. In his early career, he joined the Jinzhou Sports School badminton team for training at the age of 8, and afterwards joined the Shandong team at the age of 13. When he turned 17, he represented the Shandong team in the National Games and won 2–1 against Beijing team. His upset victory over Lin Dan made him famous in the first battle.

Sally Amaki is an American singer and voice actress based in Tokyo, Japan. She is a member of the voice acting idol group 22/7 which debuted in 2017 and is the group's "overseas representative." Within the group, she appears both as herself and as the animated character Sakura Fujima , for whom she provides the voice and motion capture.

Maxwell Perry Cotton is an American actor who portrayed Cooper Whedon in the television series Brothers & Sisters.

Peter MacNeill is a Canadian film and television actor and voice-over artist who has starred in numerous television series and films.