Vulcan Director

(Portrayed by Jonathan Whittaker).

The Vulcan Expeditionary Group Director in the mid-23rd century, he gave Sarek a choice following Michael Burnham's graduation from the Vulcan Science Academy: either Burnham or Sarek's son, Spock, could be appointed to the Vulcan Expeditionary Group.

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Lethe

The U.S.S. Discovery crew is intrigued by new addition Lieutenant Ash Tyler; Sarek seeks Michael Burnham's help rekindling memories from her past; and Admiral Cornwell questions Captain Lorca's tactics.

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Yridia Nebula

Location where Sarek was lost while on a diplomatic mission during the Klingon-Federation War. 

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Humphrey

Luke Humphrey is the actor who portrayed V'Latak, the Vulcan logic extremist who tried to assassinate Ambassador Sarek (James Frain), in the Star Trek: Discovery episode, "Lethe." His prior television and film credits include Cruel But Necessary, Saving Hope, Murdoch Mysteries, Motive, Trench 11 and Frankie Drake

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Moons of Grazer

Ash Tyler's mother was enroute to the moons of Glazer when she was killed by a rogue comet.

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Whittaker

Veteran actor Jonathan Whittaker played the Vulcan Director in the Star Trek: Discovery episode, "Lethe." One of Whittaker's earliest credits was 3 Men and a Baby, directed by Leonard Nimoy, and he counts among his subsequent film and television work Kung Fu: The Legend Continues, The X-Files, The Virgin Suicides, Gene Roddenberry's Earth: Final Conflict, Land of the Dead, Saving Hope and The Expanse. He has also appeared in such stage productions as Arcadia, Les Miserables, Dirty Dancing and Man of La Mancha.

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Tyler

(Portrayed by Shazad Latif)

A Starfleet Officer in the federation and prisoner-of-war, Tyler has seen the dark side of Starfleet's battle with the Klingons.

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Webb

Tyler Evan Webb played Shuttle Klingon 1 in the Star Trek: Discovery episode, “Choose Your Pain.” His other credits include The Rocky Horror Picture Show: Let's Do the Time Warp Again, Country Rush and The Strain.

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Rhys

Terral

Starfleet admiral during the Klingon-Federation War.

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Latif

Shazad Latif, who plays Lieutenant Ash Tyler, a Starfleet officer in the Federation, on Star Trek: Discovery, is a British actor best known for his role as Dr. Henry Jekyll in the television series Penny Dreadful.

Latif, who is of English, Scottish and Pakistani descent and studied for a time at the Bristol Old Vic Theatre School, also counts among his credits such shows and movies as Spooks, MI-5, Black Mirror, The Second Best Exotic Marigold Hotel, The Man Who Knew Infinity and Toast of London

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Maranville

Captain of the U.S.S. Yeager during the Battle of the Binary Stars.

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Northwood

Simon Northwood is a veteran stuntman and actor who played the Shuttle Pilot in the Star Trek: Discovery episode, “Choose Your Pain.” Born in England and raised there and the U.S. and Canada, he counts among his many credits, Mutant X, The Dresden Files, Diary of the Dead, Lost Girl, Hannibal, The Strain, Reign, Orphan Black, The Handmaid’s Tale, Designated Survivor and X-Men: Dark Phoenix

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Wilson

Three-time Emmy Award-nominated actor Rainn Wilson plays Harry Mudd on Star Trek: Discovery. Born and raised in Seattle, Washington, Wilson is a veteran of movies, television and theater, and is a musician, stage actor and author as well.

Wilson is best known for his role as Dwight Schrute on the long-running comedy series The Office. His other television and film credits include Galaxy Quest, Charmed, Dark Angel, House of 1000 Corpses, Six Feet Under, Juno, Monsters vs. Aliens, Super, The Rocker, Backstrom and the films Smurfs: The Lost Village and Meg. On stage, he's appeared in such productions as Titus Andronicus and, on Broadway, The Tempest (with Patrick Stewart) and London Assurance

He's also written two books, SoulPancake: Chew on Life's Big Questions and The Bassoon King.

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Powers

Kemp Powers’ Twitter bio describes him as a “playwright, screenwriter, storyteller, birdwatcher, pugilist, nerd, gentleman.” He also happens to be a Star Trek: Discovery staff writer who received co-story and co-teleplay credit on the first-season episode, “Choose Your Pain.”

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Prototaxites Stellavioatorium

A species made up of exotic material found not only in normal space, but in a discreet subspace domain known as the mycelial network

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Choose Your Pain

While on a mission, Lorca unexpectedly finds himself in the company of prisoner of war, Starfleet Lieutenant Ash Tyler and notorious intergalactic criminal, Harry Mudd. Burnham voices her concerns about the repercussions of the spore drive jumps on "Ripper".

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Starbase 157

A Federation starbase close to the Mempa Sector in the Beta Quadrant near where the U.S.S. Discovery crew believed Captain Lorca was being held by the Klingons.

It was seen in The Next Generation's "The Best of Both Worlds," where the final distress call from the transport ship Lalo was received before being destroyed by the Borg.

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Kwok-Choon

Patrick Kwok-Choon is the actor who portrays Rhys in Star Trek: Discovery. Kwok-Choon, who splits his time between Toronto and Los Angeles, is a classically trained actor and also proficient at Tae Kwon-Do, Muay Thai, Boxing and Krav Maga. His other acting credits include Covert Affairs, Nikita, Open Heart, Ransom, Wynonna Earp and Dark Matter.

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Jefferson, Iowa

A town on the planet Earth, Jefferson was the location of a classified Starfleet facilty tasked with building organic-propulsion units based on the U.S.S. Discovery's specifications during the mid-23rd century.

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