Tenavik is a monk of the monastery of Boreth. Born in 2257, he is the son of Voq, formerly the Torchbearer to T'Kuvma, and L'Rell, Chancellor of the Klingon High Council. Delivered to Boreth as an infant, he was encountered only months later as a grown man by Captain Christopher Pike of the U.S.S. Discovery due to the influence of the time crystals in the monastery.
- “Afterlife”: Tenavik greets Klingon players accompanying Emperor Kahless II to the Boreth monastery, where they reclaim the Sword of Kahless from D'Jar and the Fek'Ihri. He stands watch alongside Captain Kagran while the player and Kahless cross into Gre'thor.
- “Knowledge is Power”: Tenavik guides J'Ula into the Chamber of Time and allows her to experience a time crystal vision of possible futures. He later brings her into the monastery's cloning pit, where the monks have cloned his mother, L'Rell. However, her soul has not entered her body.
- “Leap of Faith”: Tenavik directs players, accompanied by J'Ula and General Martok, to cross into Gre'thor to find L'Rell's soul. Upon her rebirth, Tenavik brings his mother to her old D7 battlecruiser, the I.K.S. K't'inga.
- "The Book of the Dishonored Three": Entries from Tenavik's journal relate the history of the Spectre of Cowardice, the Spectre of Treachery, and the Spectre of Dishonor that reside within Gre'thor.
- Tenavik was originally supposed to be voiced by Kenneth Mitchell, the actor who portrayed him on Star Trek: Discovery. However, Mitchell was diagnosed with ALS in 2018 and his condition did not allow him to portray the role for the game. Sam Witwer, himself a long-time player of Star Trek Online, was personally chosen by Mitchell to voice Tenavik. Kenneth Mitchell coached Witwer during recording sessions.
- Official Blog - The Voice of Time, Sam Witwer Joins the Cast of Star Trek Online (January 18, 2021)
- Ten Forward Weekly Interview with Sam Witwer (August 13, 2020)
- Ten Forward Weekly: Temer and Grethor (January 21, 2021)
- Ten Forward Weekly Interview with Sam Witwer: The Voice of Time (February 4, 2021)