Spoilers ahead for Episode 17 of FBI: International Season 4 on CBS, called “Dead Dead” and streaming next day with a Paramount+ subscription.
FBI: International brought back none other than Jay Hayden for the latest episode of the 2025 TV schedule, with Agent Tyler Booth turning up on behalf of the Extraterritorial Squad out of the Washington Field Office to team up with the Fly Team again. Despite Wes cracking some jokes about the agency being concerned with space aliens (and despite the missed opportunity for an X-Files joke), Tyler fit right back in with the team, and ended the episode with an open invitation to rejoin.