List of NCIS characters
Wikimedia list article
NCIS is an American police procedural television series, revolving around a fictional team of special agents from the Naval Criminal Investigative Service, which investigates crimes involving the U.S. Navy and Marine Corps. The series was created by Donald P. Bellisario and Don McGill as a backdoor pilot with the season eight episodes "Ice Queen" and "Meltdown" of JAG. The series premiered on September 23, 2003, featuring an ensemble cast, which has included: Mark Harmon, Sasha Alexander, Michael Weatherly, Pauley Perrette, David McCallum, Sean Murray, Cote de Pablo, Lauren Holly, Rocky Carroll, Brian Dietzen, Emily Wickersham, Wilmer Valderrama, Jennifer Esposito, Duane Henry, Maria Bello, Diona Reasonover, Katrina Law, and Gary Cole.
Overview
Main characters
Table notes
Notable recurring and guest characters
Main characters
Leroy Jethro Gibbs
Supervisory Special Agent Leroy Jethro Gibbs (Mark Harmon) was born in Stillwater, Pennsylvania, to Jackson and Ann Gibbs. He enlisted in the Marine Corps in 1976 and became a Scout Sniper. After serving in Panama and Iraq, he retired from the Marine Corps with the rank of Gunnery Sergeant. He joined NIS, which later became NCIS, after his wife Shannon and only daughter Kelly were murdered in 1991. He later travelled to Mexico and murdered the drug dealer responsible, a crime he kept concealed for twenty years. Since then, he has been married and divorced three times, and is single, although he has had a number of romantic relationships since his last divorce.
Gibbs leads a Major Case Response Team (MCRT) consisting of field agents Timothy McGee, Ellie Bishop, and Nick Torres, supported by medical examiner Dr. Jimmy Palmer, psychologist and NCIS Agent Jack Sloane, forensic scientist Kasie Hines, and sometimes with the assistance of his good friend and former medical examiner Ducky Mallard.
The public source identifies “List of NCIS characters” as wikimedia list article. This brief keeps that definition visible, then builds a research path around List, NCIS and characters.
Why this record matters
A short description can identify a subject without explaining its stakes. For “List of NCIS characters”, the useful work is to connect “wikimedia list article” to the records capable of establishing context and consequence.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 20, 2026. The linked authority identifier is Q728522. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2003, 1976 and 1991.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “List of NCIS characters”, its source revision and the description used here.
- Expand the search: follow List of NCIS characters primary sources, List of NCIS characters archive and List research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “List of NCIS characters”?
- Which cited source is closest to the event, object or claim?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “List of NCIS characters” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.