Raymond Isler is one of the FBI senior agent and a close friend of Dwayne Pride.
A veteran agent of the Federal Bureau of Investigation, Sp. Agt. Isler is a recovering drug addict, having become hooked on painkillers after a line-of-duty injury. As of 2018, he has been sober for 15 years.
During his early days of sobriety, Sp. Agt. Isler was assigned to the FBI Resident Agency in Macon, Georgia.
Season Three Edit
He was introduced in "Aftershocks (episode)" as the Executive Assistant Director of the National Security Branch and the boss of Special Agent Tammy Gregorio. After the joint FBI/NCIS take down of Javier Garcia, EAD Isler was promoted to Deputy Director.
Season Four Edit
After it came to light that one of his agents was a double agent working for the Russians, Dep. Dir. Isler was demoted to Special Agent.