Varalan

The Varalans are a humanoid species who live on the planet Varala. No Starfleet ship had visited their planet as of 2375.

In the 22nd century, Laas, one of the Hundred Changelings, found himself among the Varalans. They gave him his name (which means "changeable" in their language) and he assumed their appearance, to mixed success. Laas would later begin a relationship with a Varalan woman, although it ended as the couple could not have children. Laas had left the Varalans by 2375 and had begun his search for other members of the Hundred. 

Laas would revert to his Varalan form when he was not in the Great Link when he returned home in 2376.