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Magic to Make the Sanest Man Go Mad 

As the U.S.S. Discovery crew attempts to let loose at a party, an unwelcome visitor comes aboard bringing about a problematic and twisted sequence of events.


David Barrett (as David M. Barrett)


Gene Roddenberry (based upon "Star Trek" created by), Bryan Fuller (created by) | 7 more credits »

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Episode cast overview, first billed only:
Sonequa Martin-Green ... Michael Burnham
Doug Jones ... Saru
Shazad Latif ... Ash Tyler
Anthony Rapp ... Paul Stamets
Mary Wiseman ... Sylvia Tilly
Jason Isaacs ... Captain Gabriel Lorca
Wilson Cruz ... Dr. Hugh Culber
Katherine Barrell ... Stella Grimes
Peter MacNeill ... Baron Grimes
Rainn Wilson ... Harry Mudd
Milton Barnes ... Deck Crew #1
Emily Coutts ... Keyla Detmer
Jason Deline ... Medical Officer
Hamza Fouad ... Deck Crew #2
Julianne Grossman ... Discovery Computer (voice)


As the U.S.S. Discovery crew attempts to let loose at a party, an unwelcome visitor comes aboard bringing about a problematic and twisted sequence of events.

Plot Summary | Add Synopsis


TV-14 | See all certifications »


Official Sites:

Official Site




English | Klingon

Release Date:

29 October 2017 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:

Dolby Digital (5.1)



Aspect Ratio:

2.00 : 1
See full technical specs »

Did You Know?


This episode's director David Barrett previously directed Star Trek: Enterprise: Divergence (2005). He was the first Star Trek: Discovery (2017) director to have previous "Star Trek" directing experience. See more »


When Michael Burnham and Paul Stamets are dancing in the hallway in the background a lady in a bright red dress and a man walking out of the hallway into a room. Two cuts later they again walk into the same room. See more »


[first lines]
Michael Burnham: Personal log, Specialist Michael Burnham, stardate 2136.8. Despite my fears to the contrary, I seem to have found my place on this Discovery. An air of routine has descended upon the ship, and even I am a part of it. I've made friends. Well, one, at least. I take comfort in my work. This ship has quickly become the most important weapon in the Federation's arsenal in our war against the Klingons. And because of her, the tide has turned. Because of us, we are winning. Lieutenant ...
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Referenced in Star Trek: Discovery: The Red Angel (2019) See more »

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User Reviews

Magic to Make the Sanest Man Go Mad
31 October 2017 | by Prismark10See all my reviews

A Time Loop episode, a staple of the Star Trek saga. So who gets to play the Data role? Of course it is the new, improved, slightly bonkers Stamets who figures that they have been living the same time period again and again. Almost like bad nightmare that might had once occurred to a teenage boy at a party.

Stamets approaches Burnham telling her that something is wrong but it is all clear as mudd, Harry Mudd who is after the secrets of Discovery's space drive propulsion system and sell it to the Klingons. Although the Klingons might be more interested in his time crystal so they can fight wars again and again until they win.

The episode belongs to Mudd, killing Lorca repeatedly and himself getting blown up loads of time just for some cash.

Burnham's feelings for Tyler though just gets in the way. The ending does not work. Should a person who takes over starship, endangers its crew, captures a protected space whale for nefarious purposes, colludes with an enemy during wartime, not face a trial?

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