Star Trek: Voyager (1995–2001)
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Before and After 

Before And After (original title)
On her deathbed, Kes relives her life, jumping backwards in spurts of time towards birth, gaining knowledge as to why as she goes.


Allan Kroeker


Gene Roddenberry (based upon "Star Trek" created by), Rick Berman (created by) | 4 more credits »




Episode complete credited cast:
Kate Mulgrew ... Capt. Kathryn Janeway
Robert Beltran ... Cmdr. Chakotay
Roxann Dawson ... Lt. B'Elanna Torres (as Roxann Biggs-Dawson)
Jennifer Lien ... Kes
Robert Duncan McNeill ... Lt. Tom Paris
Ethan Phillips ... Neelix
Robert Picardo ... The Doctor
Tim Russ ... Lt. Tuvok
Garrett Wang ... Ensign Harry Kim
Jessica Collins ... Linnis Paris
Michael Maguire Michael Maguire ... Benaren
Christopher Aguilar ... Andrew Kim (as Christopher Aguilar)
Janna Michaels Janna Michaels ... Young Kes
Rachael Harris ... Martis


Starting near her death with no memory, Kes experiences parts of her life moving backwards through time. The Doctor develops an experimental procedure to extend Kes' lifespan beyond the Ocampan standard nine years. We see a possible future Voyager where Janeway and Torres died years ago in a great war and the survivors of Voyager were exposed to temporal radiation. The Doctor's procedure re-activates the symptoms of the radiation, causing Kes to relive moments of her life, from being elderly to her conception. In this reality, Kes and Tom Paris married and had a daughter named Linnis. Linnis and Kes became ship's physicians. At age three, Linnis married Harry Kim and they had a son named Andrew. When the cycle takes Kes back to an embryo, the cycle begins again in the correct order, stopping at present day, leaving Kes with all the memories of the possible future and valuable knowledge of the upcoming war that will be known as "The Year of Hell." Written by Meribor

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TV-PG | See all certifications »

Did You Know?


In this version of Voyager's future, the Doctor is seen at Kes' birthday party and in the staff meeting room without his portable holo-emitter, implying that his mobile emitter may have been damaged, and that holo-emitters have likely been added to many, if not all decks of the ship, enabling him to roam freely without the use of the mobile emitter. See more »


Chakotay wears the provisional "Maquis" rank bar during Kes' ninth birthday despite being shown with captain's pips both before and after that point in the alternate timeline. See more »


Commander Chakotay: When this is over, we're all gonna have a lot of grieving to do.
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Featured in Star Trek: Voyager: Year Of Hell (1997) See more »


For She's a Jolly Good Fellow
[Performed by crew for Kes's birthday]
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User Reviews

The Curious Case of Kes
20 May 2020 | by brdavid-429-96270See all my reviews

This is definitely an episode that is more than worth it, and let me just say I love Jennifer Lien. I love her portrayal of a character that should be explored more, a character that gets discarded too many times. Kes should be in the forefront a lot more. This episode brings her forward again and it's definitely worth it. The best episodes of this season happen to be Kes focused: Warlord, and now Before and After.

This episode focuses on Kes as it appears she is appearing in different parts of her future, as she is apparently travelling backwards in time through her life and accumulating memories as she goes back. The ending is brilliant and her reaction to her continuing to move backwards is genuine. She is a fantastic actor and in my opinion Lien, and Dawson are the two actresses that are the most interesting of this show.

A rare time that Voyager is good and it all goes to Lien. Thank you for the good episodes!

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Official Sites:

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English | Greek

Release Date:

9 April 1997 (USA) See more »

Also Known As:

Before and After See more »

Company Credits

Production Co:

Paramount Television See more »
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Technical Specs


Sound Mix:

Dolby | Stereo



Aspect Ratio:

1.33 : 1
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