CBS is preparing to launch the ninth season of FBI on Monday, October 5, at 8 p.m. ET. The upcoming season features a major shift in team dynamics as Zeeko Zaki’s character , OA, moves into an undercover role.

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OA’s undercover mission for Anna Vorpe leaves a void at 26 Fed

Zeeko Zaki's character, Special Agent Omar Adom Zidan (OA), is stepping away from his regular duties at 26 Fed to work for the Department of Defense. as the report notes , this transition follows a complex scheme involving Maggie and Isobel to investigate the crimes of Anna Vorpe. While OA's departure appeared to be a result of him being fired by ADIC Lawrence Green, it was actually a calculated move to facilitate this undercover assignment.

This unndercover assignment effectively removes OA from the primary FBI team for the foreseeable future, leaving Maggie without her most reliable partner. The Season 8 finale left the status of OA's position at 26 Fed in doubt, suggesting that his return to the regular squad may not be immediate or guaranteed.

Roland Buck III brings Chicago Med experience to Isaiah Green’s debut

Roland Buck III will debut as Agent Isaiah Green in the season 9 premiere, titled "Rendition." Buck, a veteran of the Chicago Med series, is stepping into a role that will require him to navigate a team already established by characters like Scola and Jubal. According to the report, Maggie will likely struggle to build a meaningful connection with Green, especially given the deep bond she shared with OA since the show's 2018 debut.

The introduction of Green comes as CBS moves the drama back to its previous 8 p.m. ET time slot. While the new agent is expected to be a functional part of the team, the emotional weight of the partnership shift will likely be a central theme as Maggie adapts to working with someone new while wating for OA's eventual return.

The Dick Wolf casting tradition connects Chicago Med stars to the FBI team

The casting of Roland Buck III follows a long-standing tradition within the Dick Wolf television universe of utilizing familiar faces across different franchises. This practice has seen actors move seamlessly between Law & Order, One Chicago, and the FBI series to maintain a sense of continuity for viewers. For instance, Jesse Lee Soffer previously appeared in the FBI universe as Agent Wes Mitchell on FBI: International.

This pattern of talent rotation continues with the upcoming Monday night lineup, which will feature Tom Ellis and Nick Gehlfuss in the series CIA following the FBI broadcast. This interconnectedness ensures that even as characters like Isaiah Green are new to the FBI cast, they carry the pedigree of the broader Dick Wolf television ecosystem.

Will Nikki Reynard’s CIA connection complicate Maggie’s new partnership?

The premiere of "Rendition" also introduces Necar Zadegan as Nikki Reynard, the Deputy Chief of Station on CIA. It remains unverified whether Reynard’s position in the CIA will lead to a crossover conflict or a secret alliance with the new FBI agent, Isaiah Green. The source does not clarify if there is any ulterior motive behind Green's arrival or if he is simply a standard replacement for OA.

Furthermore, the show has not confirmed if OA’s undercover success will lead to a permanent return to his position at 26 Fed. Fans are left to wonder if Maggie's new partnership with Green will become a permanent fixture or if the upcoming time jump will eventually facilitate a reunion between the original duo.