Kenneth Mitchell

Actor (Kol and other roles) — Discovery

Canadian actor (1974–2024) who played four different characters in Star Trek: Discovery, the Klingons Kol, Kol-Sha and Tenavik and the human scientist Aurellio, and voiced roles in Lower Decks.

Kenneth Mitchell (1974–2024) was a Canadian actor known for the series Jericho and the film Miracle. He joined Star Trek: Discovery in its first season as Kol, the Klingon who seizes leadership of the war against the Federation.
In the second season he returned under prosthetics twice more, as Kol's father Kol-Sha in Point of Light and as Tenavik, the keeper of the time crystals on Boreth, in Through the Valley of Shadows.
After being diagnosed with motor neurone disease he played Aurellio, a scientist who uses a hover chair, in the third season. He also provided voices for the Lower Decks episode Veritas.