One Chicago & FBI Wiki
One Chicago & FBI Wiki
FBI (Season 4)
Network: CBS
Original run: September 21, 2021 -
Season chronology
Previous season: Season 3

FBI season 4 premieres on September 21, 2021 on CBS.

FBI is a fast-paced drama about the inner workings of the New York office of the Federal Bureau of Investigation. This elite unit brings to bear all their talents, intellect and technical expertise on major cases in order to keep New York and the country safe. Born into a multigenerational law enforcement family, Special Agent Maggie Bell commits deeply to the people she works with as well as those she protects. Her partner is Special Agent Omar Adom ‘OA' Zidan, a West Point graduate via Bushwick who spent two years undercover for the DEA before being cherry-picked by the FBI.

Overseeing them is Special Agent in Charge, Isobel Castille, who operates under intense pressure and has undeniable command authority. The team also includes Assistant Special Agent in Charge Jubal Valentine, the nerve center of the office whose ability to easily relate to and engage with both superiors and subordinates makes him a master motivator. Newest to the team - and the FBI - is smart and outspoken Special Agent Tiffany Wallace, who spent six years with the NYPD and is now partner to Special Agent Stuart Scola, an Ivy League educated Wall Streeter-turned-FBI agent. These first-class agents tenaciously investigate cases of tremendous magnitude, including terrorism, organized crime and counterintelligence.


Main Cast and Characters

Crossover Guest Stars

Recurring Guest Stars

Recurring Co-Stars


Image Episode Summary Airdate
FBI0401.jpg 4.01 (#57)
All That Glitters
The team investigates when a young woman is killed on her way home from a lavish yacht party attended by some of the most influential people in the world. September 21, 2021
FBI0402.jpg 4.02 (#58)
Maggie, OA and the team must stop a hacker who is disabling life-saving equipment in several New York City hospitals, including one where Jubal’s son awaits an important surgery. September 28, 2021
FBI3.jpg 4.03 (#59)
FBI3.jpg 4.04 (#60)
FBI3.jpg 4.05 (#61)
FBI3.jpg 4.06 (#62)
FBI3.jpg 4.07 (#63)
FBI3.jpg 4.08 (#64)
FBI3.jpg 4.09 (#65)
FBI3.jpg 4.10 (#66)
FBI3.jpg 4.11 (#67)
FBI3.jpg 4.12 (#68)
FBI3.jpg 4.13 (#69)

Seasons Season 1Season 2Season 3Season 4
Current characters Maggie BellOmar Adom ZidanStuart ScolaTiffany WallaceIsobel CastilleJubal Valentine
Former characters Ellen SolbergDana MosierKristen Chazal