So It Goes is the third episode of NCIS Season 12 and the 261st episode of the entire NCIS series.
Synopsis
When a man is killed, the NCIS team soon uncover a potential connection to Ducky's estranged childhood best friend. Ducky and Bishop travel to the UK to interview the victim's family and co-workers as Ducky finds himself reflecting on the choices he made in the past and how they've affected his life while back in D.C., Gibbs, Tony and McGee continue investigating the murder.
Prologue
Act One
Act Two
Act Three
Abby after she, McGee and Gibbs have discovered a potential victim on the list who's still alive.
Act Four
Act Five
Cast
Series Regulars
| Name | Portrayed by | Role |
|---|---|---|
| Leroy Jethro Gibbs | Mark Harmon | Special Agent in charge of the NCIS Major Case Response Team. |
| Anthony DiNozzo | Michael Weatherly | Senior Special Agent and second-in-command of the NCIS Major Case Response Team. |
| Timothy McGee | Sean Murray (actor) | Special Agent of the NCIS Major Case Response Team. |
| Abigail Sciuto | Pauley Perrette | Chief Forensic Specialist for the NCIS Major Case Response Team. |
| James Palmer | Brian Dietzen | Assistant Medical Examiner for the NCIS Major Case Response Team. |
| Eleanor Bishop | Emily Wickersham | NCIS Probationary Agent. |
| 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. |
Recurring Cast
| Name | Portrayed by | Role |
|---|---|---|
| Young Donald Mallard | Adam Campbell | |
| Young Angus Clarke | Adam Croasdell | |
| Burt Moore | Johann Urb | U.S. Park Police Sergeant. |
Other Cast
| Name | Portrayed by | Role |
|---|---|---|
| Maggie Clarke | Alice Krige | |
| Gareth Godfrey | Matt Burns | |
| Peter Velo | Alastair Duncan | |
| Eddie Kowolski | Glenn Taranto | A man who appears in the episode. |
| Zachary Bucket | Cleo Anthony | Navy Commander. |
| Refet Ramadani | Nicholas Massouh | Navy Chief Petty Officer. |
| Samuel Colpepper | Peter Elbling | The murder victim. |
| Vendor | Simon James | |
| Young Woman (So It Goes) | Dustin Quick | |
| Friend 1 | Megan Aimes | |
| Friend 2 | Garrett William Henson | Uncredited role. |