The Talavians are a spacefaring humanoid species. They have yellow skin and have hair that grows in places other than their heads. The Talavians have worked for both the Romulans and the Ferengi. (TNG novel: Tunnel Through the Stars)

In 2366, the Talavian Livara began to work in the Bajor sector and on Terok Nor as a Romulan spy. (DS9 episode: "Things Past")

In 2373, Silaran Prin attached a hunter probe to the hull of a Talavian freighter that docked at Deep Space 9. (DS9 episode: "The Darkness and the Light")

In 2374, Jean-Luc Picard and the crew of the Orb of Peace met several Talavians led by Fraznulen who were searching derelict ships for what they believed were artifacts left by ghosts. (TNG novel: Tunnel Through the Stars)

A female Talavian was on Deep Space 9 in 2374 and participated in Mexh Brixhta's and Quark's auction. (DS9 novel: Hollow Men)