FBI fans are in for another dramatic cast change as the series gears up for its return in October 2025. Following the shocking events of Season 7, where Isobel (Alana de la Garza) collapsed in the finale, and with the ongoing search for a fourth team member after Katherine Renee Kane’s departure as Agent Tiffany Wallace, FBI is introducing a new face for Season 8. While it is still unclear whether Isobel will survive her injuries, a fresh character will be joining the team in the upcoming season.

TVLine has reported that Emily Alabi, who previously played Stuart Scola’s (John Boyd) partner in Season 7, will be leaving the series after a brief exit arc. While Alabi’s character initially seemed like a good fit for the team, FBI is now making another attempt to find the perfect partner to fill the void left by Agent Wallace’s exit.

Enter Juliana Aidén Martinez, who is set to join the cast as a series regular for Season 8. Martinez, known for her role on Law & Order: SVU, will be stepping into the action with a new role, though details about her character remain under wraps. It’s not yet confirmed whether she will be taking on the role of Scola’s new partner, replacing Alabi’s character, or if she will serve another purpose in the aftermath of Isobel’s possible departure. Fans will have to wait until the premiere to find out whether Martinez’s character will be linked to Scola’s team or fill another gap left by the previous departures.

As for Isobel, there is no official confirmation yet about her fate. While Deadline has listed Alana de la Garza as a returning cast member, it’s still uncertain whether Isobel will return after the traumatic injury suffered in the Season 7 finale. If Isobel is written out, Martinez’s character may be stepping in to replace her, but nothing has been definitively confirmed. Viewers will have to stay tuned to see if Isobel’s storyline will continue or if the show is truly moving on without her.

Alongside Martinez, FBI fans can expect to see the return of main cast members such as Jeremy Sisto, Missy Peregrym, and Zeeko Zaki, as well as the possibility of Shantel VanSanten reprising her role as Nina Chase following the cancellation of FBI: Most Wanted. The show will also see a change in its air date, with FBI moving to Mondays, while the NCIS franchise will air on Tuesdays.

With so many changes happening before FBI returns on October 13, 2025, fans can expect an exciting and unpredictable season ahead. Be sure to catch up on past episodes of FBI on Paramount+ before the season premiere to prepare for the new twists and turns. Stay tuned for more updates on One Chicago Center!