|Rank:||Special Agent in Charge|
|Portrayed by:||Alana De La Garza|
|First episode:||FBI: Most Wanted|
|Last episode:||FBI: |
Isobel Castile is a special agent in charge for the Federal Bureau of Investigation on FBI.
A.S.A.C. (Assistant Special Agent in Charge) Isobel Castile, Fugitive Squad Supervisor, polished and focused West Point graduate with a brief stint in Silicon Valley. She's a rising star who shuns politics and is a guided missile in the field.
|Seasons||Season 1 • Season 2|
|Current characters||Maggie Bell • Omar Adom Zidan • Kristen Chazal • Jubal Valentine • Isobel Castile|
|Former characters||Ellen Solberg • Dana Mosier|