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Too Many Cooks is the tenth episode of NCIS Season 20 and the 445th episode of the entire NCIS series.

Synopsis

Members of the NCIS teams in Los Angeles and Hawaii all descend on D.C. to attend the upcoming retirement party of a beloved professor and a former Marine who worked as an instructor at FLETC, only to find themselves working with their D.C. counterparts to investigate the circumstances of his shocking suicide.

Prologue

Act One

Act Two

Act Three

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McGee after discovering that the DOD suspect he's the one committing treason.

Act Four

Act Five

Trivia

  • This episode begins the crossover that continues in the NCIS Hawaii Season 2 episode Deep Fake (episode) and concludes in the NCIS: Los Angeles Season 14 episode A Long Time Coming (episode).
  • Originally, it was to be released on January 2.
  • Chris O'Donnell (G. Callen), LL Cool J (Sam Hanna), Vanessa Lachey (Jane Tennant) and Noah Mills (Jesse Boone) are all credited as Special Guest Stars.
  • As of this episode, all the members of the NCIS: Hawaii main cast have appeared in an episode of the main NCIS series, the exceptions being Alex Tarrant (Kai Holman), Tori Anderson (Kate Whistler) and Kian Talan (Alex Tennant).
  • During McGee's interrogation, he makes a reference to the NCIS: Los Angeles Season 3 episode Sacrifice (episode) where Sam's Challenger, Charlene, was stolen, and the events of NCIS: Los Angeles Season 13 where Callen's identity was stolen and used to create various deepfake videos.

Cast

Series Regulars

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 Major Case Response Team.

Recurring Cast

Name Portrayed by Role
Jane Tennant Vanessa Lachey Special Agent in Charge of the NCIS: Hawaii team.
G. Callen Chris O'Donnell NCIS Special Agent and the leader of the Office of Special Projects field team.
Sam Hanna LL Cool J Former Navy Seal turned NCIS Special Agent with the Office of Special Projects.

Other Cast

Name Portrayed by Role
Jesse Boone Noah Mills Senior Agent and the second-in-command of the NCIS: Hawaii Team.
Dale Harding Robert Picardo Retired Gunnery Sergeant in the United States Marine Corps.
Greta Ford Stephanie Hodge FLETC instructor.
Libby Brianna Reed
Cambria Tim Rock FLETC instructor.
Simon Williams Kevin Changaris
Kidnapper Joe Chambrello
  vedNCIS Season 20
A Family Matter (episode)Daddy Issues (episode)Unearth (episode)Leave No Trace (episode)Guardian (episode)The Good Fighter (episode)Love Lost (episode)Turkey Trot (episode)Higher Education (episode)Too Many Cooks (episode)Bridges (episode)Big Rig (episode)Evil Eye (episode)Old Wounds (episode)Unusual Suspects (episode)Butterfly Effect (episode)Stranger in a Strange Land (episode)Head Games (episode)In the Spotlight (episode)Second Opinion (episode)Kompromat (episode)Black Sky (episode)
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