It's hard to believe that it's been over 22 years since The X-Files arrived, but here we are, nine seasons and two movies later, with more episodes on the way next January, proving that the franchise is still as popular as ever. Few shows can claim the level of impact and lasting appeal that The X-Files has had, with new fans being created every day. Whether you're revisiting the series or discovering it for the first time, one of the most fun aspects of looking back on it is recognizing actors who've since gone on to bigger things, with their time on The X-Files having served as a stepping stone in their careers. Countless shows can be linked back to The X-Files this way, but one of the biggest ones currently on the air is The Walking Dead, AMC's juggernaut show that only continues to break ratings and further embed itself in pop culture. Like The X-Files, The Walking Dead has already cemented a legacy for itself that will continue to be felt long after it inevitably comes to an end, with fans having come to forever attribute actors with their characters on the show. However, long before some of these actors were a part of the modern phenomenon that is TWD and its spin-off Fear the Walking Dead, they had roles in the phenomenon that was - and is - The X-Files. In advance of the new seasons of both shows, let's take a spoiler-filled look back to see if you remember when these 8 actors from The Walking Dead universe turned up on The X-Files...