List of Famous people who are 21

Lagitupu Tulimu is a political figure from the Pacific nation of Tuvalu, who represented the constituency of Nanumea. He served as the Acting Prime Minister of Tuvalu from 8 December 2000 to 24 February 2001 following the death of incumbent Ionatana Ionatana.

Peter Bruce Smith is a New Zealand actor of Māori descent.

Damian Martin is an Australian make-up artist specializing in prosthetic and creature makeup. He worked with Jim Henson's Creature Shop on the TV series Farscape and has worked on such films as Star Wars: Episode II – Attack of the Clones and Star Wars: Episode III – Revenge of the Sith. In 2016, he won an Academy Award for Best Makeup and Hairstyling along with Elka Wardega and Lesley Vanderwalt at the 88th Academy Awards for his work on the movie Mad Max: Fury Road. He was also nominated for a BAFTA Award for Best Makeup and Hair in the 69th British Academy Film Awards.

Michael Patrick Sheetz is a cell biologist, a pioneer of mechanobiology and biomechanics, and a key contributor to the discovery of kinesin. He serves as the Robert A. Welch Distinguished University Chair in Chemistry at the University of Texas Medical Branch, Galveston, the department of biochemistry and molecular biology. He is the William R. Kenan, Jr. Professor Emeritus of Cell Biology at Columbia University, former Distinguished Professor and the founding Director of the Mechanobiology Institute at the National University of Singapore, and former Professor at Washington University in St. Louis and Duke University.

Vic Tablian is an Armenian-British actor, known for the Indiana Jones movie Raiders of the Lost Ark in 1981, in which he played both the treacherous Peruvian guide and later in the film as the Nazi collaborating "Monkey Man".

Peter Bebb is a special effects artist best known for working on The Dark Knight trilogy.

Mohammad Iqbal Azizi is an ethnic Pashtun politician in Afghanistan, who served as Governor of Laghman from March 2010 to September 2012. He previously served as head of the Education Department in Nangarhar Province.