The fourth season of the

police procedural The police show, or police crime drama, is a subgenre of procedural drama and detective fiction that emphasizes the investigative procedure of a police officer or department as the protagonist(s), as contrasted with other genres that focus on eith ...

drama ''

NCIS NCIS or N.C.I.S. may refer to: Law enforcement * National Criminal Intelligence Service, the predecessor to the Serious Organised Crime Agency of the United Kingdom * Naval Criminal Investigative Service, a United States law enforcement and intelli ...

'' was originally broadcast between September 19, 2006, and May 22, 2007.

Special Agent Leroy Jethro Gibbs Leroy Jethro Gibbs is a fictional character and the original protagonist of the CBS TV series '' NCIS'', portrayed by Mark Harmon. He is a former U.S. Marine Corps Scout Sniper turned special agent who commands a team for the Naval Criminal I ...

left NCIS at the end of season three after a terrorist attack had been successful because his superiors did not heed his warnings in time. The team is now led by

Anthony DiNozzo Anthony D. "Tony" DiNozzo, Jr.Season 3, Episode 9 "Frame Up" is a fictional character from the CBS TV series '' NCIS'' portrayed by American actor Michael Weatherly. An original cast character created by producer Donald P. Bellisario, he is cr ...

for a short time until Gibbs' eventual return. New characters introduced in this season are Michelle Lee, who was briefly on DiNozzo's team and was transferred to the legal department upon Gibbs' return, and (already in the final episodes of season 3) Gibbs' former boss and mentor Mike Franks, both as recurring characters. Also, albeit later in the season,

Army CID The United States Army Criminal Investigation Division (USACID), previously known as the United States Army Criminal Investigation Command (USACIDC) is the primary federal law enforcement agency of the United States Department of the Army. Its p ...

Lieutenant Colonel

Hollis Mann '' 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 ...

is introduced as another love interest for Gibbs. In December 2006, Bill Keveney from ''

USA Today ''USA Today'' (stylized in all uppercase) is an American daily middle-market newspaper and news broadcasting company. Founded by Al Neuharth on September 15, 1982, the newspaper operates from Gannett's corporate headquarters in Tysons, Virgini ...

'' announced that the "CBS investigative drama ''NCIS'' topped the Nielsen viewership list for the first time with 17.4 million. CBS was the No. 1 network in viewers and young adults (ages 18 to 49) for the week of Dec. 11–17." ''

TV Guide TV Guide is an American digital media company that provides television program Television, sometimes shortened to TV, is a telecommunication medium for transmitting moving images and sound. The term can refer to a television set, or t ...

'' reported on May 5, 2007, that creator and showrunner Donald Bellisario would step down and leave the series due to a disagreement with series star Mark Harmon. Because of Bellisario's "chaotic management style", Harmon threatened to leave NCIS. Co-executive producer Chas. Floyd Johnson and head writer Shane Brennan replaced Bellisario as showrunner.

Cast

Main

Mark Harmon Thomas Mark Harmon (born September 2, 1951) is an American actor. He is most famous for playing the lead role of Leroy Jethro Gibbs in '' NCIS''. He also appeared in a wide variety of roles since the early 1970s. After spending the majority of ...

Leroy Jethro Gibbs Leroy Jethro Gibbs is a fictional character and the original protagonist of the CBS TV series '' NCIS'', portrayed by Mark Harmon. He is a former U.S. Marine Corps Scout Sniper turned special agent who commands a team for the Naval Criminal I ...

, NCIS Supervisory Special Agent (SSA) of the Major Case Response Team (MCRT) assigned to Washington's Navy Yard *

Michael Weatherly Michael Manning Weatherly Jr. (born July 8, 1968) is an American actor, producer, director, and musician, known for playing the roles of Anthony DiNozzo in the television series '' NCIS'' (2003–2016) and Logan Cale in '' Dark Angel'' (2000–20 ...

, NCIS Senior Special Agent, second in command of MCRT *

Cote de Pablo María José de Pablo Fernández, known professionally as Cote de Pablo (born November 12, 1979), is a Chilean-American actress and singer. Born in Santiago, Chile, she moved to the United States at the age of ten, where she studied acting. De ...

Ziva David Ziva David (; Hebrew: זיוה דוד, , feminine form of Ziv: "Radiance"; birth date November 12, 1982, Beersheba in the Negev desert of southern Israel). She was born in Be'er Sheva, Israel. is a fictional character from the CBS television seri ...

, Mossad Liaison Officer to NCIS *

Pauley Perrette Pauley Perrette (born March 27, 1969) is an American retired actress and singer. She played Abby Sciuto in the television series '' NCIS'' from 2003 to 2018. Early life Perrette was born in New Orleans, Louisiana, and raised throughout the so ...

Abby Sciuto Abigail "Abby" Beethoven Sciuto is a fictional character from the '' NCIS'' television series on CBS Television, and is portrayed by Pauley Perrette. In a season 10 episode entitled "Hit and Run", a young Abby was played by Brighton Sharbino in ...

, Forensic Specialist for NCIS * Sean Murray as

Timothy McGee Timothy Farragut "Tim" McGee () is a fictional character from the CBS television series '' NCIS''. He is portrayed by Sean Murray. McGee specializes in cybersecurity and computer crime, and is a graduate of Johns Hopkins University and MIT. Mur ...

, NCIS Junior Special Agent *

Lauren Holly Lauren Holly (born October 28, 1963) is an American actress. She has played the roles of Deputy Sheriff Maxine Stewart in the television series ''Picket Fences'', NCIS Director Jenny Shepard in the series '' NCIS'', Dr. Betty Rogers on ''Motive' ...

Jenny Shepard '' 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 ...

, NCIS Director *

David McCallum David Keith McCallum Jr. (born 19 September 1933) is a Scottish actor and musician. He first gained recognition in the 1960s for playing secret agent Illya Kuryakin in the television series ''The Man from U.N.C.L.E''. In recent years, McCallum ...

as Dr. Donald "Ducky" Mallard, Chief Medical Examiner for NCIS

Recurring

Joe Spano Joseph Peter Spano (born July 7, 1946) is an American actor best known for his roles as Lt. Henry Goldblume on ''Hill Street Blues'' and FBI Special Agent Tobias C. Fornell on '' NCIS''. He also voiced the Chuck E. Cheese (at the time Chuck E. Che ...

Tobias Fornell '' 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 ...

, FBI Senior Special Agent *

Jessica Steen Jessica Steen is a Canadian actress in both film and television, noted for her roles in ''Captain Power and the Soldiers of the Future'', '' Homefront'', '' Earth 2'', ''Armageddon'', '' Left Behind: World at War'', '' NCIS'', '' Flashpoint'' a ...

Paula Cassidy '' 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 ...

, NCIS Senior Special Agent *

Brian Dietzen Brian Dietzen (born November 14, 1977) is an American actor who has played the supporting role of Dr. Jimmy Palmer on '' NCIS'' since 2004. In 2012, he was promoted to a series regular at the beginning of the show's tenth season. Early life Die ...

Jimmy Palmer '' 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 ...

, Assistant Medical Examiner for NCIS *

Troian Bellisario Troian Avery Bellisario (born October 28, 1985) is an American actress. A graduate of the University of Southern California, in 2010, she received her breakthrough role as Spencer Hastings in the Freeform drama series ''Pretty Little Liars'' ( ...

as Sarah McGee, Tim McGee's sister *

Mary Mouser Mary Mouser is an American actress. She is best known for her role as Samantha LaRusso in the Netflix series ''Cobra Kai'', and Lacey Fleming on the ABC series ''Body of Proof''. She also took over the role of Karen Grant, Fitz & Mellie's daughte ...

as Kelly Gibbs, Gibbs' deceased daughter * Stephanie Mello as Cynthia Summer, NCIS Secretary to Director Shepard *

Muse Watson Muse Watson (born July 20, 1948) is an American stage and screen actor. He became known for his roles as Ben Willis, the primary antagonist in the ''I Know What You Did Last Summer'' franchise, Charles Westmoreland on the Fox television series ...

as Mike Franks, retired Senior Special Agent for NCIS and Gibbs' former boss *

Don Franklin Don Franklin (born December 14, 1960) is an American actor, best known for his roles in ''seaQuest DSV'' as Commander Jonathan Ford, '' Seven Days'' as Captain Craig Donovan, and as one of ''The Young Riders'' (Noah Dixon). Biography Franklin ...

as Ron Sacks, FBI Special Agent *

Scottie Thompson Susan Scott "Scottie" Thompson (born November 9, 1981) is an American film, television, and stage actress. She is best known as ''Jeanne Benoit'' in '' NCIS''. Early life Thompson grew up in Richmond, Virginia, where she attended Collegiate Sc ...

Jeanne Benoit ''NCIS (TV series), 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 United States ...

, Tony's girlfriend while undercover *

Armand Assante Armand Anthony Assante Jr. (; born October 4, 1949) is an American actor. He played mobster John Gotti in the 1996 HBO television film '' Gotti'', Odysseus in the 1997 mini-series adaptation of Homer's ''The Odyssey'', Nietzsche in ''When Niet ...

as René Benoit, NCIS target *

Susanna Thompson Susanna Thompson (born January 27, 1958) is an American actress. She is known for her roles in films ''Little Giants'' (1994), ''Ghosts of Mississippi'' (1996), ''Random Hearts'' (1999) and ''Dragonfly (2002 film), Dragonfly'' (2002). On televisio ...

, Gibbs' girlfriend and Army CID Agent *

Liza Lapira Liza Lapira (born December 3, 1981) is an American actress. She played Kianna in the 2008 film '' 21'', Special Agent Michelle Lee in the CBS police procedural series '' NCIS'' and Ivy, Topher Brink's assistant in ''Dollhouse''. Lapira has also c ...

as Michelle Lee, NCIS Special Agent *

David Dayan Fisher David Dayan Fisher is an English actor from London, England. He is known for his frequent portrayal of antagonistic characters, as well as his deep voice. He played Michael Sowerby/Raz in ''The Bill'', he has also appeared in ''The Last Post'', ...

as Trent Kort, CIA Agent *

Sandra Hess Sandra Hess (born 27 March 1968) is a Swiss actress and fashion model. She is best known for her role as Sonya Blade in the film '' Mortal Kombat: Annihilation'', and Lieutenant Alexandra "Ice" Jensen on the television series '' Pensacola: Win ...

as Regine Smidt, associate of René Benoit *

Corey Stoll Corey Stoll (born March 14, 1976) is an American actor. He is best known for his roles as Congressman Peter Russo on the Netflix political thriller series ''House of Cards'' (2013–2016), for which he received a Golden Globe nomination in 2013, ...

as Martin Quinn, associate of René Benoit *

Enzo Cilenti Vincenzo Leonardo "Enzo" Cilenti (born 8 August 1974) is an English actor, known for his roles in works such as '' The Theory of Everything'', ''Jonathan Strange & Mr Norrell'', and ''Game of Thrones''. Early life Cilenti was born in Bradford, ...

as Mamoun Sharif, NCIS target * Payton Spencer as

Emily Fornell '' 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 ...

, Tobias Fornell's daughter

Episodes

DVD special features

*Cast and Crew Commentaries on Select Episodes *Cast Roundtable (Parts 1 & 2) *Ducky's World *Behind the Set: The Production Design of N.C.I.S. *Dressed to Kill: Dressing the Sets of N.C.I.S. *Prop Master *Picture Perfect: The Looks of N.C.I.S. *Season of Secrets

References

; General references * * * {{DEFAULTSORT:Ncis Episodes (Season 4) 2006 American television seasons 2007 American television seasons NCIS 04