20 March
A list of events which occurred on the 20th of March.

Kermit Murdock is born.

Richard Carlyle is born.

Karen Steele is born.

Pamela Sargent and John de Lancie are born.

Tom Towles is born.

Nina Kiriki Hoffman is born.

Sylvester Foster is born.

Brian Brophy is born.

Nichole McAuley is born.

Timothy Olyphant is born.

Chris Freeman is born.

Cathy DeBuono is born.

Jonathan Goad is born.
The Twentieth UK Story Arc begins in TV21 & Joe 90 #78 with the first of four installments.

Natalie Diaz is born.

Brandon Fayette is born.

Nineteenth day of filming on .

 airs.
Eighth and final day of filming on .

Final draft script for  is submitted.
First day of filming on .

Fourth day of filming on .

 airs.

Greg Karas dies.
 airs.
Seventh and final day of filming on .

Third day of filming on .

Bernard A. Widin dies.
Final draft script for  is submitted.

Final draft script for  is revised.

Mickey S. Michaels dies.

Second day of filming on .

 airs.
Second day of filming on .

Second day of filming on .
Pickup shots are filmed for .

Pocket Books novel anthology Obsidian Alliances, the second book in the Mirror Universe series, is released.

Forty-eighth day of filming on .

IDW Publishing releases issue #3 of Star Trek: Countdown to Darkness.

de:20. März
es:20 marzo
it:20 marzo
nl:20 maart
pt:20 de março
ru:20 марта
sv:20 mars