The Raven Queen

The Raven Queen is the goddess of the moment of death. She is close friends with the goddess Istus. The bounty hunter Kravitz works for her, retrieving the souls of those who have died and not checked in to the Astral Plane, or those who have escaped the Astral Plane.

Graphic Novel
In The Adventure Zone: Crystal Kingdom graphic novel, The Raven Queen's name is changed to Queen Morior. Her motif appears to be bearded vultures rather than ravens.