List of Famous people who are 21

Julian Seward is a British compiler writer and Free Software contributor who lives in Stuttgart. He is commonly known for creating the bzip2 compression tool in 1996, as well as the valgrind memory debugging toolset founded in 2000. In 2006, he won a second Google-O'Reilly Open Source Award for his work on Valgrind.

Sarah Peirse is a New Zealand actress. She is on screen and stage, best known for her portrayals of two very different mothers — the kind-hearted Honora Rieper in Heavenly Creatures, and the disaffected sophisticate Kate in Rain. More recently she appeared as Hilda in Peter Jackson's Hobbit trilogy, as well as The Shannara Chronicles.

Lisa Tomblin is a film make-up department chief hairdresser.

Carolyn Scott is an American art director and set decorator. She won an Academy Award in the category Best Art Direction for the film The Madness of King George.

Thomas James Allom is an English record producer and sound engineer. His best-known work was in the 1970s and 1980s, working with artists such as Judas Priest, Black Sabbath, Krokus, Loverboy, Def Leppard, Kix, and Rough Cutt. Allom is a member of the Music Producers Guild.

Maurice Stern is an American operatic tenor and sculptor. He graduated from the Eastman School of Music. He made his debut at the New York City Opera as The Emperor Altuom in Giacomo Puccini's Turandot, and received a laudatory solo review by Eric Salzman of The New York Times for that small role.

Sameera bint Ibrahim Rajab is a Bahraini politician and former member of Majlis al-shura and Minister of State for Information.

Steven Van Zandt, also known as Little Steven or Miami Steve, is an American singer, songwriter, musician, producer, actor, and activist. He is best known as a member of Bruce Springsteen's E Street Band, in which he plays guitar and mandolin. He is also known for his roles on television drama series, such as Silvio Dante on The Sopranos (1999–2007) and Frank Tagliano on Lilyhammer (2012–2014). Van Zandt has his own solo band called Little Steven and The Disciples of Soul, active on and off since the 1980s. In 2014, he was inducted into the Rock and Roll Hall of Fame as a member of the E Street Band.

Josh Olson is an American screenwriter and podcaster, known for writing the 2005 film A History of Violence.