Special Agent in Charge Isobel Castille is a fictional character portrayed by Alana De La Garza in the TV series FBI.
In the first episode they appeared in, titled Most Wanted (season 1), they were 42 years old.
They appear in 80 episodes out of a total of 113 aired so far and have accumulated 14151 positive votes.
The character of Special Agent in Charge Isobel Castille is mainly associated with Assistant Special Agent in Charge Jubal Valentine, Special Agent Stuart Scola and Special Agent Tiffany Wallace.
Episodes80
Most Wanted
episode S1.E18 april 2019OA and Maggie team up with members of the FBI's Fugitives Department to track down a person wanted for murder who is then put on America's Top 10 Most Wanted list.
Little Egypt
episode S2.E1 september 2019After a bomb detonates at a restaurant in Queens, the case becomes personal for OA, who grew up eating there; OA goes under cover to prevent another incident.
The Lives of Others
episode S2.E2 october 2019After the son of a prominent blogger is kidnapped, the team must sweep through her two million followers to find the culprit; Kristen continues to adjust to life as a field agent with her new partner, Stuart Scola.
American Idol
episode S2.E3 october 2019When a female presidential candidate is targeted with a car bomb, OA and Maggie must hurry to find the bomber before they strike again.
An Imperfect Science
episode S2.E4 october 2019It appears that the FBI ignored previous threats from a local white supremacist group after a shooting happens at a nightclub.
Crossroads
episode S2.E5 october 2019A loving husband and father of two is kidnapped after accidentally getting involved in illegal dealings far beyond what he imagined.
Outsider
episode S2.E6 november 2019After a Wall Street investor is murdered, the team is led to an insider-trading ring that uses unconventional methods to gain information; OA struggles to maintain confidence in his budding relationship with Mona.
Undisclosed
episode S2.E7 november 2019When a board member of a soon-to-be-public medical tech company is murdered, the team tries to find out who had the most to gain from his death. Also, OA is conflicted when pressure to help a family member is at odds with his commitment to tell the truth.
Codename: Ferdinand
episode S2.E8 november 2019When the team digs into the circumstances surrounding a car crash that resulted in the death of a photographer, they realize there is more than meets the eye. Also, Maggie sympathizes with his widow, Annie Weber (Erica Fae), when she notices similarities with her own husband's death.
Salvation
episode S2.E9 november 2019A teacher goes missing after an altercation with a student, leading the team to investigate everyone who might have had a grudge against him.
Ties That Bind
episode S2.E10 december 2019A former kidnapping victim is linked to a series of murders that includes the daughter of an NYPD detective. Also, Kristen begins to doubt her ability as an agent after a training exercise leaves her shaken.
Fallout
episode S2.E11 january 2020When a businessman with a history of harassment claims is killed, the team suspects that one of his accusers may be the killer.
Hard Decisions
episode S2.E12 january 2020A bank holdup leads the team to a safe deposit box, the contents of which have the potential to destroy national security; Kristen is eager to get back into field work while other team members still have their concerns.
Payback
episode S2.E13 january 2020The son of a retired FBI agent is kidnapped, and the team must investigate if it's an act of revenge; Isobel must make a hard call when information from the past comes to light.
Studio Gangster
episode S2.E14 january 2020When a U.S. attorney is found dead steps away from the body of a private escort, the team must piece together what connected the two seemingly random victims. Also, Jubal's connection with one of the victims makes finding the killer much more personal.
Legacy
episode S2.E15 february 2020After a truck filled with weapons is hijacked, the team works to discover who stole it and what they have planned for the goods.
Safe Room
episode S2.E16 february 2020A desperate father abducts a billionaire's daughter, holding her hostage in a safe room until his own missing child is returned to him.
Broken Promises
episode S2.E17 march 2020When the team is called to the scene of a murder, they quickly suspect political motivation, but when another murder occurs, they work to uncover a common thread before more bodies pile up. Also, Maggie contemplates a decision that could affect her entire career.
American Dreams
episode S2.E18 march 2020Jess LaCroix from the Fugitive Task Force joins the case of a busload of kids being kidnapped when the suspect is a white supremacist he apprehended years ago.
Emotional Rescue
episode S2.E19 march 2020The FBI team investigates a drug deal gone bad after the body of a college student is found. Also, Detective Hailey Upton temporarily joins the team and finds her usual investigative methods clash with the Bureau's more buttoned-up environment.
Never Trust a Stranger
episode S3.E1 november 2020The team welcomes a new member as they search for killers who orchestrated a mass shooting at a media company, and OA's personal connection with the case threatens to cloud his judgment, on the third season premiere of FBI
Unreasonable Doubt
episode S3.E2 november 2020The team races to stop an active serial killer after three women are found weighted down at the bottom of a lake; Jubal looks into an old closed case after there are multiple similarities to the recent victims.
Liar's Poker
episode S3.E3 december 2020When the leader of a drug cartel and one of the world's most wanted men is apprehended by the team, the entire FBI headquarters is put at risk when his henchmen unveil a plot to free him; Isabel must make a difficult decision.
Crazy Love
episode S3.E4 january 2021A shooting at a quinceañera leaves two dead, but the team believes they may not have been the intended targets.
Clean Slate
episode S3.E5 january 2021As the team searches for a young girl who was kidnapped from a cabin during a family vacation, they discover that the abduction may be tied to a skeleton in her familys closet. Also, Maggie questions her relationship with Nestor when she learns he hasn't been completely honest with her.
Uncovered
episode S3.E6 february 2021The team must infiltrate a drug trafficking gang after the robbery of a chemical plant leaves two customs agents dead; Nestor offers his help on the case, giving Maggie new insight into his character.
Discord
episode S3.E7 march 2021The team hunts a killer who is fatally shooting seemingly unrelated targets while an experience on the job has new agent Tiffany Wallace examining the tension between her career as an FBI special agent and the responsibility she feels to her community as a black woman.
Walk the Line
episode S3.E8 march 2021After a bomb leaves three people dead, the team presses a reluctant informant to gather information from his close friends who are under suspicion.
Leverage
episode S3.E9 march 2021When a political reporter is kidnapped and held without a ransom demand, the team must dig into her past relationships in order to pin down her assailant's motive. Also, Isobel's relationship comes under fire when the case makes a connection to her boyfriend, Ethan.
Checks and Balances
episode S3.E10 april 2021Animal masks are worn by 2 robbers hitting cheque-cashing facilities, the FBI teams up (one very reluctantly) with NYPD to track down leads but the investigation goes in a shocking direction for some in both Agencies.
Brother's Keeper
episode S3.E11 april 2021After a man is killed by an explosive package shipped to his home, the team attempts to capture the sender and intercept his latest deadly parcel.
Fathers and Sons
episode S3.E12 may 2021The team rushes to track down two doctors abducted by a desperate father willing to do anything to save his son. Also, Jubal's uncertainty in his family life affects his judgement during the hostage situation.
Short Squeeze
episode S3.E13 may 2021When the CEO of a major brokerage firm is shot and killed while surrounded by protesters, the team looks into who had the most to lose from his company's perceived manipulations. Also, Scola's previous Wall Street career and the reasons he left come to light as the financial details of the case begin to unfold.
Trigger Effect
episode S3.E14 may 2021As the team investigates a mass casualty incident at a New York City restaurant, Maggie notices troubling behavior from Elise.
Straight Flush
episode S3.E15 may 2021When five prominent men are killed at a trendy New York City restaurant, the team's investigation brings them into contact with a lieutenant in Antonio Vargas' cartel, triggering a long-awaited showdown between Isobel and Vargas.
All That Glitters
episode S4.E1 september 2021A young woman is killed on her way home from a lavish yacht party and a suspect is identified as a veteran who had been on several Army operations with Crosby.
Hacktivist
episode S4.E2 september 2021Maggie, OA and the team must stop a hacker who is disabling life-saving equipment in several New York City hospitals; Jubal's son waits for important surgery at one of the impacted hospitals.
Trauma
episode S4.E3 october 2021The team finds a connection between bombings and a private veterans' club in New York City; Isobel tells a reluctant OA to recruit a former army buddy for intel.
Know Thyself
episode S4.E4 october 2021The team hunts for a serial killer who is targeting young, homeless men. Also, Tiffany and Scola don't see eye to eye on how to handle the case or the difference between partners and co-workers.
Charlotte's Web
episode S4.E5 november 2021After a suburban woman is kidnapped from her home, the team looks into trysts on both sides of a seemingly perfect marriage; OA feels pressure from Mona to make changes in his career path.
Allegiance
episode S4.E6 november 2021The team must track down a shooter targeting detectives from the same precinct and unit, while facing mounting tension from the NYPD. Also, Tiffany finds that her NYPD roots may be influencing her view of the situation.
Gone Baby Gone
episode S4.E7 november 2021After a young girl is kidnapped from her daycare, the team must help her parents navigate a debt owed to the deadly gang in their neighborhood. Also, Maggie struggles to focus on the case when her sister, Erin, returns from rehab.
Fire and Rain
episode S4.E8 december 2021A widow is shocked that her new "boyfriend" is the manipulative leader of a terrorist group planning an attack; Scola is reminded of his brother's death on 9/11; Tiffany worries about his emotional choices during the investigation.
Unfinished Business
episode S4.E9 december 2021After Rina is critically wounded while heading to work with Jubal, the team makes the chilling discovery that a vengeful Vargas orchestrated the shooting from behind bars and continues to target the rest of their team and their loved ones.
Fostered
episode S4.E10 january 2022As the team investigates a string of jewelry store robberies that culminate in a double murder, they uncover a connection to a 16-year-old boy trying to survive the foster care system.
Grief
episode S4.E11 january 2022The team searches for an abducted college coed; Jubal has a tense encounter with Rina's mother.
Under Pressure
episode S4.E12 february 2022Maggie goes undercover working in a bar to investigate an anti-government group that regularly gathers there and has several members suspected in a series of bombings.
Pride and Prejudice
episode S4.E13 february 2022When a Muslim college student and his younger brother are murdered, the team connects with the outraged Imam of OA's former mosque, who insists the victims were wrongly targeted as terrorists.
Ambition
episode S4.E14 march 2022The team rushes to investigate an extremist gun group after an anti-gun lobbyist building is bombed.
Scar Tissue
episode S4.E15 march 2022The team realize they have a cross-country serial killer on their hands; the case has ties to Isobel's father, a hotel chain general counsel. Revelations about their fractured relationship are learned.
Protective Details
episode S4.E16 march 2022After an ICE agent is fatally shot at an ICE vs. DEA hockey game, the team attempts to find the shooter who they believe may also be targeting Congressman Curtis Grange, who was at the same game.
One Night Stand
episode S4.E17 april 2022When a young couple is found murdered in a park after returning from a vacation, the team searches for a suspect linked to the drug trade.
Fear Nothing
episode S4.E18 april 2022The team discovers that deadly sarin gas may have been sold to terrorists, forcing OA to confront one of his biggest fears.
Face Off
episode S4.E19 april 2022When a morning show host is murdered, the team tracks the killer, who is is targeting powerful women.
Ghost from the Past
episode S4.E20 may 2022The murder of a TSA agent leads the team to hunt down a killer who is using drug mules to exploit airport security checkpoints.
Kayla
episode S4.E21 may 2022When a retired DEA agent is shot outside a bakery, the team works to determine if the victim's past cases or current bouncer job are connected to the murder.
Hero's Journey
episode S5.E1 september 2022The team's sting operation to secure a massive bomb from an illegal broker leads them to discover that the device is already in the wrong hands.
Love Is Blind
episode S5.E2 september 2022The team investigates a young Ivy League dropout linked to the deaths of an officer and a pawn shop owner.
Prodigal Son
episode S5.E3 october 2022As the team investigates a deadly robbery, they discover one of the perps is a classmate of Jubal's son.
Victim
episode S5.E4 october 2022The team investigates a series of brutal assaults; OA hides information about his own mugging.
Flopped Cop
episode S5.E5 october 2022The team investigates when a wealthy accountant is gunned down for secretly testifying against a notorious drug lord.
Double Blind
episode S5.E6 november 2022As the team works to rescue a kidnapped 5 year old, Scola suspects the boy's mother isn't being forthcoming about why her son was targeted.
Ready or Not
episode S5.E7 november 2022Maggie returns from medical leave in time to help the team investigate two homicides.
Into the Fire
episode S5.E8 november 2022When a heist arms killers with enough supplies to construct a bomb, the team discover a link to a terrorist group Maggie is working to infiltrate.
Fortunate Son
episode S5.E9 december 2022A teen shows up at 26 Fed with a bag of fentanyl, seeking the team's protection from the men who shot his father.
Second Life
episode S5.E10 january 2023The abduction of a young woman leads the team back to a cold case from 18 years ago
Heroes
episode S5.E11 january 2023The team jumps into action when JOC analyst Kelly Moran is taken hostage.
Breakdown
episode S5.E12 january 2023The team jumps into action to determine who's behind a mysterious bio-chemical weapon that left two MTA workers dead.
Protégé
episode S5.E13 february 2023The team investigates the murder of a professional informant after he's found dead outside an abandoned factory.
Money for Nothing
episode S5.E14 february 2023After a string of armed robberies, the team investigates a suspect who leads them to something much bigger.
The Lies We Tell
episode S5.E15 february 2023When an off-duty Diplomatic Security agent is fatally shot in New York City trying to apprehend someone, the team investigates if there's a connection to his time working in Croatia.
Family First
episode S5.E16 march 2023The shooting of a federal corrections officer leads the team to an ex-Marine who has gone rogue.
Imminent Threat: Part Two
episode S5.E17 april 2023Maggie calls in Remy Scott to aid Scola in his undercover mission to find the terrorists behind an imminent attack.
Obligation
episode S5.E18 april 2023When the deputy commander of an Air National Guard Base is kidnapped, the team must work quickly to find the suspect along with stolen ammunition.
Sins of the Past
episode S5.E19 april 2023When a trucker is gunned down after a routine trip from Canada, all signs point the team to a criminal on the FBI's Most Wanted Terrorists list.
Sisterhood
episode S5.E20 april 2023A drug dealer is shot in a federal park and the team sets out to look for his murderer; Maggie's sister returns to New York and complicates the situation.
Privilege
episode S5.E21 may 2023The team investigates the kidnapping of a prominent U.S. Senator's daughter and a potential connection to another case.
Torn
episode S5.E22 may 2023The team races to find a dangerous dealer and his supplier after finding a group of teens dead from a drug overdose.
God Complex
episode S5.E23 may 2023The team must race against time to hunt down a religiously motivated serial killer when a prominent doctor is found dead.
All the Rage
episode S6.E1 february 2024When a bus explosion kills several innocent people, the team jumps into action. Scola tries to balance fatherhood with the job.
- Most Wanted
- Little Egypt
- The Lives of Others
- American Idol
- An Imperfect Science
- Crossroads
- Outsider
- Undisclosed
- Codename: Ferdinand
- Salvation
- Ties That Bind
- Fallout
- Hard Decisions
- Payback
- Studio Gangster
- Legacy
- Safe Room
- Broken Promises
- American Dreams
- Emotional Rescue
- Never Trust a Stranger
- Unreasonable Doubt
- Liar's Poker
- Crazy Love
- Clean Slate
- Uncovered
- Discord
- Walk the Line
- Leverage
- Checks and Balances
- Brother's Keeper
- Fathers and Sons
- Short Squeeze
- Trigger Effect
- Straight Flush
- All That Glitters
- Hacktivist
- Trauma
- Know Thyself
- Charlotte's Web
- Allegiance
- Gone Baby Gone
- Fire and Rain
- Unfinished Business
- Fostered
- Grief
- Under Pressure
- Pride and Prejudice
- Ambition
- Scar Tissue
- Protective Details
- One Night Stand
- Fear Nothing
- Face Off
- Ghost from the Past
- Kayla
- Hero's Journey
- Love Is Blind
- Prodigal Son
- Victim
- Flopped Cop
- Double Blind
- Ready or Not
- Into the Fire
- Fortunate Son
- Second Life
- Heroes
- Breakdown
- Protégé
- Money for Nothing
- The Lies We Tell
- Family First
- Imminent Threat: Part Two
- Obligation
- Sins of the Past
- Sisterhood
- Privilege
- Torn
- God Complex
- All the Rage
Best moments10
- The abduction of a young woman leads the team back to a cold case from 18 years ago
- When five prominent men are killed at a trendy New York City restaurant, the team's investigation brings them into contact with a lieutenant in Antonio Vargas' cartel, triggering a long-awaited showdown between Isobel and Vargas.
- When a morning show host is murdered, the team tracks the killer, who is is targeting powerful women.
- The team realize they have a cross-country serial killer on their hands; the case has ties to Isobel's father, a hotel chain general counsel. Revelations about their fractured relationship are learned.
- When a political reporter is kidnapped and held without a ransom demand, the team must dig into her past relationships in order to pin down her assailant's motive. Also, Isobel's relationship comes under fire when the case makes a connection to her boyfriend, Ethan.
- When the leader of a drug cartel and one of the world's most wanted men is apprehended by the team, the entire FBI headquarters is put at risk when his henchmen unveil a plot to free him; Isabel must make a difficult decision.
- The son of a retired FBI agent is kidnapped, and the team must investigate if it's an act of revenge; Isobel must make a hard call when information from the past comes to light.
- When an off-duty Diplomatic Security agent is fatally shot in New York City trying to apprehend someone, the team investigates if there's a connection to his time working in Croatia.
- A bank holdup leads the team to a safe deposit box, the contents of which have the potential to destroy national security; Kristen is eager to get back into field work while other team members still have their concerns.
- The team investigates the kidnapping of a prominent U.S. Senator's daughter and a potential connection to another case.
- Second Life
- Straight Flush
- Face Off
- Scar Tissue
- Leverage
- Liar's Poker
- Payback
- The Lies We Tell
- Hard Decisions
- Privilege