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."

Season Two

FBI Agents

• Agent Tirone
• Frank Lundy
• Max Adams
• Robinson

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.
• "The British Invasion" - The FBI concludes that James Doakes was the Bay Harbor Butcher and closes the case.

Season Four

FBI Agents

• Agent Davis
• Frank Lundy (unofficially)

Trinity Case

• "Living the Dream" - Lundy, albeit unofficially, returns to Miami after growing suspicious of The Trinity Killer returning.
• "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.

Season Five

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.

Season Six

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 agent soon returns control of the case to the Miami police.

Season Eight

U.S. Marshall

• Max Clayton

Fugitive Case

• "Make Your Own Kind of Music" - A federal marshal, Max Clayton, arrives to search for Hannah McKay when she returns to Miami.
• "Monkey in a Box" - Clayton is murdered by Oliver Saxon, the serial killer known as the Brain Surgeon.

New Blood

Runaways Case

• "Sins of the Father" - After finding Kurt Caldwell's victims, Angela Bishop orders Teddy Reed to call the FBI for backup alongside the state troopers, CSI and coroners as Angela needs all of the help that she could get to help her with the bodies before a media frenzy descends on the place.

Resurrection

Lady Vengeance Case

• "Cats and Mouse" - It's mentioned that the FBI are amongst the law enforcement agencies to interview Mia LaPierre and be stonewalled by her before Mia's "suicide."

Gemini Killer Case

• "Cats and Mouse" - Gareth's Twin mentions that as The Gemini Killer, he's #1 on the FBI's Most Wanted list, and he worries about Mia LaPierre making a deal with the FBI in exchange for his real identity. Dexter later kills Gareth's Twin, thinking "you're welcome, FBI's Most Wanted list."