- Oct 1 Lon "Lonny" Chapman, American actor (Investigator, For the People), born in Tulsa, Oklahoma (d. 2007)
- Oct 1 Walter Matthau, American actor and comedian (The Odd Couple, Bad News Bears), born in New York City (d. 2000)
- Oct 13 Albert Hague [Marcuse], German-American actor, singer and composer (Fame; How the Grinch Stole Christmas), born in Berlin, Germany (d. 2001)
- Oct 13 Laraine Day [La Raine Johnson], American actress (Dr. KIldaire, Foreign Correspondent), born in Roosevelt, Utah (d. 2007)
- Oct 15 Henri Verneuil, French-Armenian playwright and film director (Mélodie en sous-sol), born in Rodosto, Ottoman Turkey (d. 2002)
- Oct 17 Montgomery Clift, American actor (From Here to Eternity, Judgement at Nuremberg), born in Omaha, Nebraska (d. 1966)
- Oct 17 Rudolf Hrusinský, Czech actor and director (Short Cut, Golden Eels), born in Nová Včelnice (d. 1994)
- Oct 18 Melina Mercouri, Greek actress, activist and politician, born in Athens, Greece (d. 1994)
- Oct 19 LaWanda Page [Alberta Peal], American actress (Aunt Esther-Sanford & Sons), born in Cleveland, Ohio (d. 2002)
- Oct 22 Mitzi Green [Elizabeth Keno], American child actress (Huckleberry Finn, Little Orphan Annie), born in The Bronx, New York (d. 1969)
- Oct 27 Nanette Fabray [Ruby Fabares], American actress and singer (Love Life, Caesar's Hour, One Day at a Time), born in San Diego, California (d. 2018)
About October 1920
How Old? 103 years old
Generation: Greatest Generation
Leap Year: Yes
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