- Dec 4 Brooke Adams, American model and professional wrestler, born in St. Louis, Missouri
- Dec 4 Lauren London, American actress (The Game), born in Los Angeles, California
- Dec 4 Lindsay Felton, American actress (Caitlin's Way), born in Seattle, Washington
Theo James (39 years old)
Dec 16 English actor (Divergent, The Time Traveler's Wife), born in High Wycombe, England
Bob Morley (39 years old)
Dec 20 Australian actor (Bellamy Blake-"The 100"; Drew Curtis-"Home and Away"), born in Kyneton, Victoria, Australia
- Dec 25 Georgia Moffett, British actress, born in London
- Dec 25 Jessica Origliasso, Australian singer-songwriter and actress (The Veronicas), born in Albany Creek, Queensland, Australia
- Dec 25 Lisa Origliasso, Australian singer-songwriter and actress (The Veronicas), born in Albany Creek, Queensland, Australia
- Dec 28 Beverly Mullins, American wrestler & model, born in Clearwater, Florida
- Dec 30 Andra Day [Cassandra Batie], American singer-songwriter ("Rise Up"), and actress (The United States vs. Billie Holiday), born in Edmonds, Washington
About December 1984
How Old? 39 years old
Generation: Millennial
Leap Year: Yes
Chinese Zodiac: Rat
Star Signs: Sagittarius (Nov 22 - Dec 21), Capricorn (Dec 22 - Jan 19)
Actors
Actresses
Comedians
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TV Stars