- Dec 1 Ralph Manza, American actor (Banacek, Mama Malone, Newhart), born in San Francisco, California (d. 2000)
- Dec 4 (Edna Mae) "Deanna" Durbin, Canadian actress and vocalist (Every Sunday; Three Smart Girls; 100 Men & a Girl), born in Winnipeg, Manitoba (d. 2013)
- Dec 5 Alvin "Alvy" Moore, American comic actor (Green Acres, Scream, Intruder), born in Vincennes, Indiana (d. 1997)
- Dec 5 Peter Hansen, American actor (General Hospital, The War of the Roses), born in Oakland, California (d. 2017)
- Dec 6 Piero Piccioni, Italian jazz pianist, lawyer, film score composer (Swept Away), and conductor, born in Turin, Piedmont, Italy (d. 2004)
- Dec 8 Terence Morgan, British actor (Sir Francis Drake, Curse of the Mummy's Tomb), born in London, England (d. 2005)
- Dec 11 Liz Smith [Betty Gleadle] British BAFTA Award-winning character actress (A Private Function; 2point4 Children -"Belle" and "Bette"), born in Crosby, Lincolnshire, England (d. 2016)
- Dec 11 Maila Nurmi [Syrjäniemi], Finnish-American actress (The Vampira Show), born in Gloucester, Massachusetts or Petsamo, Finland (d. 2008)
- Dec 20 George Roy Hill, American Academy Award-winning film director (Butch Cassidy and the Sundance Kid; The Sting; Slap Shot; A Little Romance; The World According to Garp), born in Minneapolis, Minnesota (d. 2002)
- Dec 23 Gerald S O'Loughlin, American actor and director (Storefront Lawyer, Rookies, Wheels), born in New York City (d. 2015)
Steve Allen (1921-2000)
Dec 26 American comedian, composer, writer and TV host (Tonight Show, Steve Allen Show), born in New York City
About December 1921
How Old? 102 years old
Generation: Greatest Generation
Leap Year: No
Chinese Zodiac: Rooster
Star Signs: Sagittarius (Nov 22 - Dec 21), Capricorn (Dec 22 - Jan 19)
Actors
Actresses
Comedians
Directors
Models
TV Stars