Exit Strategy is the 3rd episode of NCIS Season 15 and also the 333rd episode of the entire NCIS series.
While on a stakeout with Metro P.D., Torres's partner mysteriously vanishes with the subsequent investigation leading NCIS to uncover new evidence from a decade-old murder while Ducky's friend, Cadence Darwin presents him with a new opportunity during his guest lecture series.
- Continuing with the revelation that he was to act as a guest lecturer at a medical school in the events of Twofer (episode), Ducky is presented with, and ultimately accepts, a proposition to teach for a semester in New York.
|Leroy Jethro Gibbs||Mark Harmon||Special Agent in charge of the NCIS Major Case Response Team.|
|Abigail Sciuto||Pauley Perrette||Chief Forensic Specialist for the NCIS Major Case Response Team.|
|Timothy McGee||Sean Murray||Senior Special Agent and second-in command of the NCIS Major Case Response Team.|
|Nicholas Torres||Wilmer Valderrama||Special Agent for the NCIS Major Case Response Team.|
|Eleanor Bishop||Emily Wickersham||Special Agent for the NCIS Major Case Response Team.|
|James Palmer||Brian Dietzen||Assistant Medical Examiner for the NCIS Major Case Response Team.|
|Leon Vance||Rocky Carroll||Director of NCIS. Despite being credited, Carroll does not appear in this episode.|
|Donald Mallard||David McCallum||Chief Medical Examiner for the NCIS Major Case Response Team.|
|Clayton Reeves||Duane Henry||Interagency Liaison between MI6 and NCIS. Despite being credited, Henry does not appear in this episode.|
|Danny Sportelli||Jack Conley||Metro P.D. Detective and Higgins's killer.|
|Michelle Lane||Lauren Stamile|
|Cadence Darwin||Susan Blakely||Doctor.|
|Benny Sitano||Carter MacIntyre|
|Omar Nitro||Coley Speaks|
|Miles Higgins||Travis Wester||Metro Police Department Detective and victim.|
|Landon Pottorf||Alexander Davis|
|Man (Exit Strategy)||Tyler Lueck|