Fair rating?Star Trek: Discovery· Season 1 · Episode 6
Lethe
The U.S.S. Discovery crew is intrigued by new addition, Lt. Ash Tyler. Sarek seeks Burnham's help, rekindling memories from her past. Admiral Cornwell questions Lorca's tactics.
Streaming on (US) 
See all
#7In Season 1of 15 rated episodes
#37All-timeof 65 rated episodes
+0.0vs season avgSeason 1 averages 7.6
2017First airedOctober 22, 2017
Guest stars
Wilson Cruzas Dr. Hugh Culber
Jayne Brookas Admiral Katrina Cornwell
James Frainas Ambassador Sarek
Mia Kirshneras Amanda Grayson
Kenneth Mitchellas Klingon Commanding Officer Kol
Emily Couttsas Lt. Cmdr. Keyla Detmer
Oyin Oladejoas Lt. Cmdr. Joann Owosekun
Julianne Grossmanas Discovery Computer (voice)
Sara Mitichas Lieutenant Commander Airiam
Damon Runyanas Ujilli
Conrad Coatesas Admiral Terral
Clare McConnellas Dennas
Jonathan Whittakeras Vulcan Director
Luke Humphreyas Adjunct V'LatakCrew
Doug AarniokoskiDirector
Joe MenoskyWriter
Ted SullivanWriterShows like Star Trek: Discovery
The closest matches on shared genres, ranked by match strength and popularity.
- 01Drama·Adventure·Science-FictionDoctor Who2005–2022·BBC One
Adventures across time and space with the time travelling alien and companions. - 02Drama·Adventure·Science-FictionDoctor Who2023·BBC iPlayer
The Doctor and friends travel from the dawn of human history to distant alien worlds. - 03Drama·Adventure·Science-FictionFirefly2002–2002·FOX
Five hundred years in the future, a renegade crew aboard a small spacecraft tries to survive as they travel the unknown parts of the galaxy and evade warring factions as well as authority agents out to get them. - 04Drama·Adventure·Science-FictionSmallville2001–2011·The CWA retelling of Superman's early days as teenager Clark Kent growing up in Smallville, Kansas.
- 05Drama·Adventure·Science-FictionThe Gifted2017–2019·FOXThe Gifted tells the story of a suburban couple whose ordinary lives are rocked by the sudden discovery that their children possess mutant powers.
- 06Drama·Adventure·Science-FictionThe War Between the Land and the Sea2025–2025·BBC iPlayerWhen a fearsome and ancient species emerges from the ocean, dramatically revealing themselves to humanity, an international crisis is triggered.
