A hologram with human appearance who serves among the escaped Hirogen prey led by the Bajoran hologram Iden in the two-part episode Flesh and Blood.
Weiss appears in the Voyager episode Flesh and Blood. He is one of the holograms created by the Hirogen from the technology Janeway gave them, programmed with the likenesses of Alpha Quadrant species and made intelligent enough to be worthwhile prey.
The holograms eventually turn on their hunters, seize a ship and flee under the leadership of Iden. Weiss, who looks human, is part of this crew along with the Cardassian hologram Kejal.
He follows Iden as the group abducts B'Elanna Torres to help them build a holographic generator for a world of their own. As Iden's sense of mission hardens into something like a messiah complex, the rebellion ends in violence and the Doctor has to stop him.