Nonstop is the 14th episode of NCIS Season 14 and also the 320th episode of the entire NCIS series.
The murder of a Petty Officer in a small town outside D.C. prompts NCIS to once again work with "The Sherlocks", a privately funded investigative team that includes their newest member: Anthony DiNozzo Senior.
- Torres meets the Sherlocks for the first time.
- Anthony DiNozzo Senior returns and it's revealed that he's joined the Sherlocks and also been promoted to formal member.
|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.|
|Alexandra Quinn||Jennifer Esposito||Special Agent for the NCIS Major Case Response Team.|
|Eleanor Bishop||Emily Wickersham||Probationary 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||Officer with MI6. Despite being credited, Henry does not appear in this episode.|
|Anthony DiNozzo Senior||Robert Wagner||The father of former NCIS Special Agent Anthony DiNozzo.|
|Walt Osorio||Richard Riehle||Member of The Sherlock Consortium for Investigation.|
|Judith McKnight||Jessica Walter||Member of The Sherlock Consortium for Investigation.|
|Lyle Waznicki||Todd Louiso||Member of The Sherlock Consortium for Investigation.|
|Michael Kettering||Nick Jandl||Husband of the victim and killer.|
|Taj Robinson||Steven Cox||Alarm system box installer.|
|Darlene Jones||Austin Highsmith||Victim's husband's fiancée.|
|James Shelty||Michael Broderick||Navy Commander.|
|Cheryl Dombrowski||Kristina Klebe||Navy Lieutenant.|
|Zeke||Hermie Castillo||Pizza delivery man|
|Maya Kettering||Unknown||Michael Kettering's wife.|
|Cameron Mann||Russell Nauman||Kettering's decoy.|