Vatas is one of the tiefling refugees seeking shelter at the
Emerald Grove in
Act One.

“
Kind of you to open your camp to us. We'll have to return the favour in Baldur's Gate.
„
Vatas appears at the tiefling camp celebration which happens during a long rest after successfully finishing
Defeat the Goblins. He takes the place of
Danis, if he is dead.
He appears as one of the dead tieflings at the Goblin Celebration in case the quest
Raid the Emerald Grove was completed.