Guardian is the fifth episode of NCIS Season 20 and the 440th episode of the entire NCIS series.
Synopsis
When Vance is attacked during a home invasion, Parker steps in to defend his boss from any further attacks, with the two learning it's connected to an operation that Vance participated in six years ago while the team detects progress in Jessica and Jimmy's blossoming romance.
Prologue
Act One
Act Two
Vance in the hotel room.
Act Three
Act Four
Act Five
Major Events
- With Vance and Parker out of the country, McGee becomes temporary acting Director for NCIS.
Cast
Series Regular
| Name | Portrayed by | Role |
|---|---|---|
| Timothy McGee | Sean Murray | Senior Agent for the NCIS Major Case Response Team. |
| Nicholas Torres | Wilmer Valderrama | Special Agent for the NCIS Major Case Response Team. |
| James Palmer | Brian Dietzen | Chief Medical Examiner for the NCIS Major Case Response Team. |
| Kasie Hines | Diona Reasonover | NCIS Forensic Specialist. |
| Jessica Knight | Katrina Law | NCIS Special Agent. |
| Donald Mallard | David McCallum | NCIS Historian. Despite being credited, McCallum does not appear in this episode. |
| Leon Vance | Rocky Carroll | NCIS Director. |
| Alden Parker | Gary Cole | NCIS Special Agent in Charge of the NCIS Case Response Team. |
Recurring Cast
| Name | Portrayed by | Role |
| Olivia Kahn | Jessica Gardner | Vance's secretary. |
Guest Cast
| Name | Portrayed by | Role |
| Lena Paulsen | Marem Hassler | BND Deputy. |
| Frauke Biedermann | Elyse Levesque | BND Agent and a mole for Sergei Umarov. |
| Larry Sykes | Dustin Seavey | |
| Phil Newcastle | Oscar Best | Retired NCIS Special Agent. |
| Heidi Umarov Paulsen | Charley Rowan McCain | Sergei Umarov's niece and Lena Paulsen's foster daughter as well as the daughter of Goren Umarov. |
| Elisabeth Wenders | Marika Engelhardt | Lena Paulsen's sister. |
| Sergei Umarov | Ian Fisher | Criminal who is also the uncle of Heidi Umarov Paulsen and the brother of Goren Umarov. |
| Masked Man 1 | Mickey Cassidy | |
| Masked Man 2 | Anthony Molinari |