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What's Past Is Prologue 

Lorca plans to move forward with a coup against the Emperor, propelling Burnham to make a quick decision to save not only herself, but the U.S.S. Discovery.


Olatunde Osunsanmi


Gene Roddenberry (based upon "Star Trek" created by), Bryan Fuller (created by) | 6 more credits »

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Episode complete credited cast:
Sonequa Martin-Green ... Michael Burnham
Doug Jones ... Saru
Shazad Latif ... Ash Tyler (credit only)
Anthony Rapp ... Paul Stamets
Mary Wiseman ... Sylvia Tilly
Jason Isaacs ... Captain Gabriel Lorca
Michelle Yeoh ... Emperor Georgiou
Rekha Sharma ... Commander Landry
Emily Coutts ... Keyla Detmer
Jeremy Crittenden ... Lord Eling
Patrick Kwok-Choon ... Rhys
Sara Mitich ... Airiam
Oyin Oladejo ... Joann Owosekun
Ronnie Rowe ... Bryce (as Ronnie Rowe Jr.)


Lorca plans to move forward with a coup against the Emperor, propelling Burnham to make a quick decision to save not only herself, but the U.S.S. Discovery.

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Release Date:

28 January 2018 (USA) See more »

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Did You Know?


Captain Lorca's ship in the opening of the episode is the ISS Buran (NCC-1422) The Buran is a Cardenas-class starship in use during the 2250's by the Federation. The USS Yeager participated in Battle of the Binary Stars with the Klingons in 2256. Star Trek: Discovery: Battle at the Binary Stars (2017)

Like the contemporaneous Nimitz-class and the later 23rd century Constellation-class, as well as the 24th century Cheyenne- and Prometheus-classes, this type was noted for being one of the small number of Federation classes that had more than two nacelles. Episodes where these ships are used include; (Star Trek: The Next Generation: The Battle (1987), Star Trek: The Next Generation: The Best of Both Worlds (1990), Star Trek: The Next Generation: The Best of Both Worlds: Part II (1990) and Star Trek: Voyager: Message in a Bottle (1998)). See more »


When Lorca swings the sword at Georgiou after pulling the knife from his shoulder and throwing it, you can see Michael fighting a woman in the background. She throws a punch at the woman that misses her by at least a foot. See more »


Saru: It is well known that my species has the ability to sense the coming of death. I do not sense it today. I may not have all the answers; however, I do know that I am surrounded by a team I trust. The finest a captain could ever hope to command. Lorca abused our idealism. And make no mistake, Discovery is no longer Lorca's. She is ours. And today will be her maiden voyage. We have a duty to perform, and we will not accept a no-win scenario. You have your orders. On your way.
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Featured in After Trek: Vaulting Ambition (2018) See more »

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User Reviews

29 January 2018 | by jtkjonesSee all my reviews

What does it mean when an episode is so good it feels like a finale but there are still 2 episodes left?? This episode, similar to the last 1-2 episodes, has done a great job of explaining some of the "canon" complaints of Trek purists. Even though they didn't have a leg to stand on to begin with, some loose ends getting handled are welcome.

DSC is having the best 1st season of any Trek series ever. The story telling is superb, the characters are well written and supremely well acted. Doug Jones is mind boggling with how he can emote wearing his Saru makeup. The man can ACT!

It's nice to see people who initially, and blindly, jumped on the hate bandwagon finally realizing how incredibly wrong they were and admitting they are enjoying DSC. And the remaining purists are now far outnumbered and keeping to the shadows hugging their "great bird of the galaxy" dolls. DSC is here for the long haul!

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