Gregorio's ex-husband, who disappeared after embezzling more than $80 million dollars from the Hurricane Katrina relief fund, comes to New Orleans after Pride's team found a connection with him and a murder investigation.
- Gregorio killed Vincenzo Moretti
- Gregorio call Percy "Dr. Phil".
- Gregorio: He's lying.
- Pride: How can you tell?
- Gregorio: His lips are moving.
|Dwayne Cassius Pride||Scott Bakula||Senior Special Agent in charge of the NCIS New Orleans office, NCIS|
|Christopher LaSalle||Lucas Black||Special Agent, New Orleans Office, NCIS|
|Tammy Gregorio||Vanessa Ferlito||Special Agent, New Orleans Office, NCIS (former FBI member)|
|Sonja Percy||Shalita Grant||Special Agent, New Orleans Office, NCIS and former ATF Agent|
|Sebastian Lund||Rob Kerkovich||Forensic Agent, New Orleans Office, NCIS, Jefferson Parrish Coroner's office|
|Patton Plame||Daryl "Chill" Mitchell||Investigative Computer Specialist|
|Dr. Loretta Wade||C. C. H. Pounder||Medical Examiner, Jefferson Parrish Coroner's office|
|Ethan McKinley||Ed Quinn|
|Theo Aufiero||John Hensley|
|Matt Aufiero||Tom Degnan|
|Lloyd Williams||Geoffrey D. Williams|
|Kathleen||Cherrae L. Stuart||Bank Teller (Credited as Cherrae Stuart)|
|Vincenzo Moretti||Carl Anthony Nespoli||Credited as Carl Nespoli|