Carl Tart

Actor (Lieutenant Kayshon) — Lower Decks

American actor, comedian and writer who voices Lieutenant Kayshon, the Tamarian security chief of the USS Cerritos, from the second season of Star Trek: Lower Decks.

Carl Tart is an American actor, improviser and writer, known for the sitcom Grand Crew, for writing on Brooklyn Nine-Nine and for frequent appearances on comedy podcasts such as Comedy Bang! Bang!
In Star Trek: Lower Decks he voices Lieutenant Kayshon, who joins the Cerritos as head of security in the episode Kayshon, His Eyes Open, succeeding the late Lieutenant Shaxs. Kayshon is the first of the Tamarians, the metaphor-speaking people of The Next Generation episode Darmok, to be shown serving in Starfleet.
He generally speaks standard English through the universal translator but slips into Tamarian allusion under stress. When Shaxs returns from the dead the two share duties, and Kayshon stays on as a recurring member of the bridge crew.