List of Famous people born on April 21st

Jeannette Walls is an American author and journalist widely known as former gossip columnist for MSNBC.com and author of The Glass Castle, a memoir of the nomadic family life of her childhood. Published in 2005, it had been on the New York Times Best Seller list for 421 weeks as of June 3, 2018. She is a 2006 recipient of the Alex Awards and Christopher Award.

John Muir also known as "John of the Mountains" and "Father of the National Parks", was an influential Scottish-American naturalist, author, environmental philosopher, botanist, zoologist, glaciologist, and early advocate for the preservation of wilderness in the United States of America.

Misako Yasuda is a Japanese actress and former gravure idol who is represented by the talent agency, Artist-house Pyramid.

Adriano Moraes is a Brazilian mixed martial artist who competes in the Flyweight division of ONE Championship. He is the current ONE Flyweight Champion.

Mário Covas Almeida Júnior was a Brazilian politician.

Haji Aliyev is an Azerbaijani freestyle wrestler. He competed at the 61 kg division in the 2014 European Wrestling Championships and won the gold medal after beating Bekkhan Goygereyev of Russia.

Gerhard Delling is a German journalist and author.

María Gabriela de Jesús Isler Morales is a Venezuelan TV host, fashion model and beauty queen who represented Venezuela and was crowned Miss Universe 2013, gaining placement as the seventh Miss Universe of her country.

Tomoko Namba is a Japanese entrepreneur, and the former CEO of DeNA Co., Ltd.. In 1999 she founded DeNA, one of Japan's largest mobile social network and mobile game companies. She stepped down in 2011 to focus on her family and personal life.

Reni Santoni was an American film, television and voice actor. He was noted for playing Poppie on the television sitcom Seinfeld, Tony Gonzales in Cobra, and Chico González in Dirty Harry.