Federal Bureau of Investigation

Federal Bureau of Investigation (FBI) is an organization in real life and in the Showtime series DEXTER.

The FBI operates under the jurisdiction of the United States Department of Justice, and is the domestic intelligence and security service of the United States. It is the principal federal law enforcement agency.

FBI Agents appear in the series for major cases. They are often not welcomed as they are viewed as rivals by the local Miami Metro Police Department. A successful outcome is usually credited to the FBI, despite the groundwork laid out by the Miami police. In addition to the FBI, Homeland Security and a U.S. Marshall appear in the series.

"Dexter: 'Looks like they want to take over the case.' Debra: 'It wouldn't fucking surprise me, it's what the feds do best.'"

FBI Agents

 * Agent Tirone
 * Frank Lundy
 * Max Adams

Bay Harbor Butcher

 * "Waiting to Exhale" - Special Agent Frank Lundy arrives in Miami to lead the investigation.
 * "Left Turn Ahead" - Lundy's boss, Max Adams, assumes control when he loses confidence in Lundy.

FBI Agents

 * Agent Davis
 * Frank Lundy (unofficially)

Trinity Case

 * "The Getaway" - Once the The Trinity Killer is identified, FBI Agents take over the Trinity Case, and transport all evidence to their headquarters in Washington, D.C.

FBI Agents

 * Agent Ross
 * Ray Walker
 * FBI Handler

Rita's Murder

 * "My Bad" - FBI agents take charge of the Rita Morgan crime scene.
 * "Hello, Bandit" - Dexter is interviewed by the FBI and cleared of involved in Rita's murder.

Homeland Security

 * Agent Hubbard

Wormwood

 * "Talk to the Hand" - Following Wormwood, Homeland Security arrives in Miami to confirm it was not a terrorist attack. This dismays the local detectives, such as Joey Quinn, who believe they will take the credit in the Doomsday Killer Case. However, the agen soon return control of the case to the Miami police.

U.S. Marshall

 * Max Clayton

Fugitive Case

 * "Make Your Own Kind of Music" - A federal marshal arrives to search for Hannah McKay when she returns to Miami.