List of Famous people who are 31

Adam John Thielen is an American football wide receiver for the Minnesota Vikings of the National Football League (NFL). He played college football at Minnesota State and signed with the Vikings as an undrafted free agent in 2013. Thielen holds several NFL records, including eight straight games over 100+ yards receiving, and 74 receptions in the first half of a season.

Liv Lisa Fries is a German actress who has appeared in several films and who gained an international following as the female lead Charlotte Ritter in the German TV series Babylon Berlin which premiered in 2017.

Alexander Richard Pettyfer is a British actor and model. He appeared in school plays and on television before being cast as Alex Rider, the main character in the 2006 film version of Stormbreaker. Pettyfer was nominated for a Young Artist Award and an Empire Award for his role.

Adam Reynolds, is an Australian professional rugby league footballer who plays as a halfback for and captains the Brisbane Broncos in the NRL.

Nadia de Santiago Capell is a Spanish actress. Luisa Capell is her mother. She appeared in more than thirty films since 2001. In 2007, she was nominated for the Goya Award for Best New Actress for her performance in Las 13 rosas.

Liu Yuning is a Chinese mainland pop singer, actor, and the lead singer of Modern Brothers.

Reina Sumi is an announcer for TV Tokyo. She was born in Gifu, Gifu Prefecture.

Jamie Lee Collins, Sr. is an American football linebacker for the Detroit Lions of the National Football League (NFL). He was drafted by the New England Patriots in the second round of the 2013 NFL Draft. The Patriots traded him to the Cleveland Browns in the middle of the 2016 season, but the Patriots resigned him as a free agent prior to the 2019 season. He played college football at Southern Mississippi.

Whitney Mercilus is an American football outside linebacker for the Houston Texans of the National Football League (NFL). He played college football for the University of Illinois and was recognized as a unanimous All-American. He was selected by the Texans in the first round of the 2012 NFL Draft, and was considered one of the best defensive end prospects for 2012.

Christopher Paul Colfer is an American actor, singer, and author. He gained international recognition for his portrayal of Kurt Hummel on the television musical Glee (2009–2015). Colfer's portrayal of Kurt received critical praise for which he has been the recipient of several awards, including Best Supporting Actor in a Series, Miniseries or Television Film at the 2011 Golden Globe Awards, and three consecutive People's Choice Awards for Favorite Comedic TV Actor in 2013, 2014, and 2015. In April 2011, Colfer was named one of the Time 100, Time's list of the 100 most influential people in the world.