Soul hunters

Soul hunter is the name attributed to an alien race featured in the 1994-1998 science fiction television series Babylon 5. They first appeared in the second episode of season one, "Soul Hunter", where two members of the species were represented. They were played by actors W. Morgan Sheppard and John Snyder. A third Soul hunter, played by veteran actor Martin Sheen, was featured in the 1998 telemovie Babylon 5: The River of Souls. A fourth Soul hunter also appeared in the film, played by an uncredited actor.

Description
Soul hunters are a sentient bipedal extraterrestrial race with excedingly long life spans. They earned their name due to their driving ambition to collect the souls of the dead. This practice has garnered a reputation as cosmic "boogey men" among some alien cultures, particularly the Minbari. The hunters themselves do not perceive their vocation as nothing more than an honorable practice, collecting and preserving the souls of the dead after they pass on so that they may worship them.