Teljan was a male Cardassian agent of the Obsidian Order in the early 24th century.

In 2327, Teljan was part of a Cardassian mission to sabotage relations between Ambassador Sarek and the Legarans. During the formal opening of talks on Vulcan Space Central, Teljan posed as an Antedean, and committed an offense to the Legarans by displaying the color orange. Teljan was captured by authorities, and Ambassador Spock attempted to learn of his mission via a mind meld. However, Teljan committed suicide by means of a hidden pill before anything could be learned from him. (TOS comic: "Enter the Wolves")