Actors Who Guest-Starred On The X-Files Before They Were Famous
William Brown
Updated on March 06, 2026
Ryan Reynolds weathered a lot of bad comic book movies, starred in his share of romantic comedies, and eventually became a huge comedy action star with films like Deadpool, Deadpool 2, and Netflix's 6 Underground. But two decades before he was killing it as Wade Wilson, Reynolds made one of his first television appearances on The X-Files as the victim who gets taken out before the opening credits.
Reynolds plays Jay "Boom" DeBoom, a high school jock in mourning in season three's "Syzygy." The episode opens with Reynolds delivering words of remembrance for his buddy Bruno, the latest victim in a series of murders in Comity, New Hampshire, that the locals attribute to a satanic cult. Boom's send-off includes a warning that the survivors need to "kick some butt" just as he's sure his dead friend Bruno "is doin' in Heaven right now."
Now, if you've seen enough episodes of The X-Files, then you know the locals always think it's a satanic cult, and so of course, it's never a satanic cult. The true killers are high school girls Terri (Lisa Robin Kelly) and Margi (Wendy Benson), who Boom offers a ride home. During the drive, the girls tell Boom they've heard the cult is looking for a blonde virgin to murder next and suggest if they were no longer virgins, they'd be out of danger. Predictably, Boom turns off the main road, and the next thing you know, it's daytime, and Boom is dead ... hanging from the side of a cliff. Cue the opening credits.