1920s (Production)
1920
- Date Unknown: Virginia Darcy is born.
January
- 20 January: DeForest Kelley and Bernard A. Widin are born.
March
- 3 March: James Doohan is born.
April
- 17 April: Adrian Spies is born.
September
John Crawford as Ferris (TOS 13)
- 13 September: John Crawford is born.
1921
June
- 10 June: Garry Walberg is born.
August
- 12 August: Walter M. "Matt" Jefferies is born.
- 19 August: Gene Roddenberry is born.
- 27 August: Leo Penn is born.
October
- 22 October: Robert Dawn is born.
1922
January
- 20 January: Don M. Mankiewicz is born.
1923
February
- 24 February: Fred Steiner is born.
March
- 3 March: Joseph G. Sorokin is born.
April
Charles J. Stewart as Captain Ramart (TOS 07)
- 16 April: Charles J. Stewart is born.
May
Natalie Norwick as Martha Leighton (TOS 12)
- 1 May: Ralh Senensky is born.
- 28 May: Natalie Norwick is born.
June
- 24 June: Joe Lombardi is born.
July
Biff Elliot as Schmitter (TOS 26)
- 26 July: Biff Elliot is born.
August
- 4 August: Paul Schneider is born.
- 14 August: George Sawaya is born.
October
- 31 October: Jack Hunsaker is born.
1924
January
- 7 January: Gene Coon is born.
March
- 12 March: Robert H. Raff is born.
June
- 22 June: Carl F. Biddiscombe is born.
September
Bob Herron as Sam (TOS 07)
- 23 September: Bob Herron is born.
- 26 September: Shimon Wincelberg is born.
October
Mark Lenard as Romulan Commander (TOS 08)
- 15 October: Mark Lenard is born.
1925
April
Robert Phillips as Officer (TOS 00)
- 10 April: Robert Phillips is born.
May
Barry Russo as Giotto (TOS 26)
- 3 May: Barry Russo is born.
July
- 22 July: Joseph Sargent is born.
August
- 2 August: Gregg Peters is born.
September
Seamon Glass as Benton (TOS 03)
- 26 September: Seamon Glass is born.
1926
January
Harry Basch as Brown (TOS 09)
- 16 January: Harry Basch is born.
February
- 20 February: Richard Matheson is born.
November
Robert Brown as Lazarus (TOS 20)
- 17 November: Robert Brown is born.
- 25 November: Jeffrey Hunter is born.
1927
April
- 30 April: Stephen Kandel is born.
September
Jon Kowal as Hiram Gossett (TOS 03)
- 11 September: Jon Kowal is born.
October
John Winston as Kyle (TOS 21)
- 8 October: Dallas Mitchell is born.
- 24 October: John Winston is born.
November
Hal Lynch as Air Police Sergeant (TOS 21)
- 13 November: Hal Lynch is born.
- 16 November: Robert Butler is born.
1928
February
- 13 February: Gerald Fried is born.
March
Brad Weston as Ed Appel (TOS 26)
- 5 March: Brad Weston is born.
April
- 1 April: Michael O'Herlihy is born.
May
Jeanne Bal as Nancy Crater (TOS 05)
- 3 May: Jeanne Bal is born.
July
Tom Troupe as Harold (TOS 19)
- 6 July: Robert Hamner is born.
- 15 July: Tom Troupe is born.
August
- 30 August: Harvey Hart is born.
December
Malachi Throne as José Mendez (TOS 00)
John Colicos as Kor (TOS 27)
- 1 December: Malachi Throne is born
- 10 December: John Colicos is born
1929
February
- 9 February: Walt Davis is born.
- 13 February: Eli Behar is born.
March
Bill Blackburn as Hadley (TOS 13)
- 14 March: Bill Blackburn is born.
May
Jim Goodwin as John Farrell (TOS 03)
- 21 May: Jim Goodwin is born.
July
- 22 July: Perry Lopez is born.
- 29 July: George Clayton Johnson is born.
August
- 10 August: Vincent McEveety is born.
December
- 8 December: Victor Lundin is born.
