After the NCIS team discover evidence from the murder of a Navy Captain which is connected to Ducky's dead mother, Ducky finds himself questioning a pivotal life choice he made thirty-seven years ago while the team exchanges holiday gifts as Gibbs spends Christmas dinner with Fornell.
- Ducky's middle name is revealed to be "Horatio".
- Ducky is revealed to be the reason why he and his mother moved to the United States.
- The episode is actually confirmed to be the 317th episode, airing before the 316th episode.
- This is the final Season 14 episode for the year.
- Clyde Kusatsu, who portrays the gardener Mister Takumi Rin, previously appeared on NCIS, in The Inside Man (episode), as Benjamin Franklin.
|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 (actor)||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.|
|Donald Mallard||David McCallum||Chief Medical Examiner for the NCIS Major Case Response Team.|
|Clayton Reeves||Duane Henry||Officer with MI6.|
|Tobias Fornell||Joe Spano||FBI Agent.|
|Emily Fornell||Juliette Angelo||Fornell's daughter.|
|Young Donald Mallard||Adam Campbell||Ducky in his youth.|
|Young Angus Clarke||Adam Croasdell||Angus in his youth.|
|Young Mrs. Victoria Mallard||Caroline Lagerfelt||Ducky's mother.|
|Balthazar Kilmeany||Charles Shaughnessy||Victoria Mallard's fiancée.|
|Takumi Rin||Clyde Kusatsu||Ducky's former gardener.|
|Logan Chase||T.J. Linnard||Captain Mason Green's son-in-law.|
|Haley Chase||Hannah Barefoot||Captain Mason Green's daughter.|
|Mason Green||Brent Anderson||Navy Captain and the main murder victim.|
|Louis Lancaster||Scott Subiono|
|Anton Vlastefin||Mikie Beatty||Driver.|