Isobel Castille

Isobel Castille
Name:	Isobel Castille
Alias(es):	Izzy
Profession:	FBI Agent
Rank:	Special Agent in Charge, New York Field Office
Family:	Robert Castille (father) unnamed mother (deceased)
Marital status:	Married
Spouse(s):	Phillip
Children:	3 unnamed step-daughters
Status:	Alive
Portrayed by:	Alana De La Garza
First episode:	FBI: Most Wanted

Isobel Castille is the Special Agent in Charge of the New York Field Office on FBI.

Biography

Isobel Castille is a polished and focused West Point graduate with a brief stint in Silicon Valley (needs citation). She's a rising star in the FBI who shuns politics and is a guided missile in the field. In 2014 or 2015, she was the A.S.A.C. (Assistant Special Agent in Charge) of the Drugs Division (Payback). Later in 2018, she was A.S.A.C. of the Fugitive Task Force (Most Wanted). She held the position until she was promoted to S.A.C. (Special Agent in Charge) of the New York Field Office around September 2019 (Little Egypt), replacing former S.A.C. Dana Mosier.

Her first assignment in the FBI was in the New York Field Office, where she was partnered with Special Agent Jake Reed. One of her first cases was the Collier abduction case, which occurred in Staten Island. She was involved with Jake Reed at the time (Second Life). It's known that she worked in the Alabama field office in 2012 where she was among the first responders in a white supremacist bombing of a church (Hard Decisions). Isobel may have been friends, or worked possibly in the Drugs Division, with Special Agent Kyle Miller, who was killed by Antonio Vargas, head of the Durango Cartel, in 2013 (Liar's Poker).

Her father, Robert Castille, is a lawyer who’s General Counsel of the Legal Department of CMR Hotels (Scar Tissue). Isobel is fluent in spoken and read Spanish (Crossroads, Straight Flush, Fire and Rain, Heroes).

Gallery

Appearances

• FBI (6 seasons, 79 episodes):
  • Season 1: Most Wanted
  • Season 2: 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
  • Season 3: 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
  • Season 4: 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
  • Season 5: Hero's Journey • Love is Blind • Victim • Flopped Cop • Double Bind • 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 II • Obligation • Sins of the Past • Sisterhood • Privilege • Torn • God Complex
  • Season 6: All the Rage
• FBI: Most Wanted (4 seasons, 12 episodes):
  • Season 1: Dopesick • Caesar • Reveille
  • Season 2: Deconflict • Criminal Justice
  • Season 3: Exposed • Gladiator • Incel • Decriminalized
  • Season 4: Crypto Wars • Imminent Threat, Part III • Heaven Falling
• FBI: International (2 seasons, 3 episodes):
  • Season 1: Pilot • Secrets as Weapons
  • Season 2: Imminent Threat, Part I