List of Famous people born on January 21st

Tyler Cowen is an American economist, who is an economics professor at George Mason University, where he holds the Holbert L. Harris chair in the economics department. He hosts the economics blog Marginal Revolution, together with co-author Alex Tabarrok. Cowen and Tabarrok also maintain the website Marginal Revolution University, a venture in online education.

Ronald Sinclair, born Richard Arthur Hould and sometimes credited as Ra Hould or Ron Sinclair, was a child actor from New Zealand, turned film editor.

Nicolas Inaudi is a French former cyclist.

Alois Josef hrabě Krakovský z Kolovrat or Krakowský z Kolowrat was the Roman Catholic archbishop of Prague from 1831 to 1833.

Jerry London is an American television director and producer.

John Arthur Doucette was an American character actor who performed in more than 280 film and television productions between 1941 and 1987. A man of stocky build who possessed a deep, rich voice, he proved equally adept at portraying characters in Shakespearean plays as well as in Westerns and in modern crime dramas. He is perhaps best remembered, however, for his villainous roles as a movie and television "tough guy".

Alan Hewitt was an American film, television, and stage actor. His most prominent TV roles were Detective Brennan in My Favorite Martian and the district attorney in How to Murder Your Wife.