Star Trek celebrity guest Gerrit Graham playing Q or Quinn and a hunter on Voyager in Death Wish and on Deep Space Nine in Captive Pursuit.
The top picture is the actor in normal circumstances, and the bottom picture(s) is of the actor in their specific role(s).
6 Pictures From Captive Pursuit
6 Pictures From Death Wish
Starring in mostly B-movie horror flicks, this actor is most famous for his role as Beef in the Brian De Palma cult classic "Phantom of the Paradise" with Paul Williams. He also starred in Child's Play 2, TerrorVision, Demon Seed, plus the TV shows Dynasty and Parker Lewis Can't Lose.
Captive Pursuit -Star Trek: Deep Space Nine - 406 (episode # 1.5) -Playing one of the hunters -An alien vessel comes through the wormhole and O'Brien tows in the destroyed ship with a reptilian named Tosk. Another ship like Tosk's shows up with hunters that are after him, but O'Brien helps him escape.
Death Wish -Star Trek: Voyager - 130 (episode # 2.18) -Playing Q/Quinn -While attempting to beam up a comet sample, the crew brings aboard a member of the Q Continuum, who was imprisoned inside. This Q wants to die though and the continuum doesn't want him to commit suicide and a trial ensues with Janeway being the judge. Janeway grants him the choice while trying to convince him to live out his life as a human. He kills himself anyway though.