NCIS (TV) Cast
The cast of NCIS. Updated on September 17, 2025.
2,783 actors
Mark Harmon
as Leroy Jethro Gibbs (435 episodes)

Mark Harmon portrays the character of Leroy Jethro Gibbs, a highly skilled and experienced special agent who leads the NCIS team. Gibbs is known for his no-nonsense demeanor and his commitment to his job.

Sean Murray
as Timothy McGee (452 episodes)

Sean Murray plays the role of Timothy McGee, a computer expert and special agent. McGee is highly skilled in technology and cybercrime investigations. He is often the team's go-to person for computer-related tasks.

Michael Weatherly
as Tony DiNozzo (307 episodes)

Michael Weatherly plays the role of Tony DiNozzo, a former homicide detective turned agent. DiNozzo is known for his wit, charm, and ability to think outside the box. He often provides comic relief in tense situations.

Wilmer Valderrama
as Nick Torres (161 episodes)
Katrina Law
as Jessica Knight (55 episodes)
Cote de Pablo
as Ziva David (195 episodes)

Cote de Pablo plays the role of Ziva David, a former Mossad officer who joins the NCIS team. David is a skilled investigator and a valuable asset to the team. She is resourceful, determined, and has a complex past.

Brian Dietzen
as Jimmy Palmer (344 episodes)
Sasha Alexander
as Caitlin Todd (49 episodes)

Sasha Alexander portrays the character of Caitlin Todd, a former Secret Service agent who becomes an NCIS agent. Todd is highly skilled in crime scene investigation and is known for her intelligence and determination.

David McCallum
as Dr. Donald 'Ducky' Mallard (457 episodes)

David McCallum portrays the character of Donald 'Ducky' Mallard, the chief medical examiner for the NCIS team. Mallard is known for his vast knowledge and experience in forensic pathology. He often provides valuable insights during investigations.

Pauley Perrette
as Abby Sciuto (354 episodes)

Pauley Perrette plays the role of Abby Sciuto, the forensic specialist of the NCIS team. Sciuto is a talented scientist with a unique goth style and an affinity for technology. She is a valuable asset in solving cases.

Rocky Carroll
as NCIS Director Leon Vance (328 episodes)
Emily Wickersham
as Ellie Bishop (172 episodes)
Lauren Holly
as Jenny Shepard (61 episodes)
Gary Cole
as Alden Parker (52 episodes)

Gary Cole portrays the character of Alden Parker, a senior agent who joins the NCIS team. Parker brings a wealth of experience and expertise to the team, and his presence adds a new dynamic to the group.

Maria Bello
as Jack Sloane (76 episodes)
Duane Henry
as Clayton Reeves (50 episodes)
Diona Reasonover
as Kasie Hines (113 episodes)
Jennifer Esposito
as Alex Quinn (24 episodes)
Amy Tipton
as Liza Taylor (1 episode)
Stacy Haiduk
as Melissa Dorn (1 episode)
Alex Fernandez
as Joseph Flores (2 episodes)
Tommy Hinkley
as Deer Hunter (1 episode)
Brett Cullen
as Todd Gelfand (2 episodes)
David Eigenberg
as (1 episode)
Channon Roe
as Greg Lambro (1 episode)
Paul Greene
as (1 episode)
Cameron Goodman
as Maddie Tyler (1 episode)
Jennifer Hetrick
as Dr. Donna Dunlap (1 episode)
Mercedes Renard
as Julia Veloso (1 episode)
Kay Lenz
as Conny Quinn Wheeler (1 episode)
Jesse Garcia
as (1 episode)
Jonathan M. Woodward
as Andy Nelson (1 episode)
Tim Guinee
as (1 episode)
Rick Hoffman
as Kelvin Ridgeway (1 episode)
Eric Martsolf
as Paul Harris (1 episode)
Armand Assante
as René 'La Grenouille' Benoit (4 episodes)
Neil Hopkins
as Jeremy Davison (1 episode)
Jessica Steen
as Paula Cassidy (6 episodes)
Danica McKellar
as Erin Kendall (1 episode)
Alex Nesic
as Alex Rudd (1 episode)
Meredith Monroe
as April Ferris (1 episode)
Richard Lineback
as Chuck Winslow (1 episode)
Christopher Darga
as Skip Harris (1 episode)
Morgan Weisser
as Vincent Hanlan (1 episode)
Scott Paulin
as Kevin Dorn (1 episode)
Dilshad Vadsaria
as Shakira Zayd (1 episode)
JR Bourne
as Marshall Collins (1 episode)
Tracy Scoggins
as (1 episode)
Patrick Fabian
as Ray Vincent (1 episode)
Misha Collins
as Justin Farris (1 episode)
Mike Starr
as Monroe Cooper (1 episode)
Mini Anden
as Hannah Bresling (1 episode)
Christopher Allport
as Dan Karzin (1 episode)
Douglas Spain
as Cesar Bernal (1 episode)
Richard Keith
as Frank Dreyer (1 episode)
Weronika Rosati
as (1 episode)
Sharni Vinson
as (1 episode)
George Newbern
as Arthur Haskell (1 episode)
P.J. Byrne
as Ross Logan (1 episode)
Linsey Godfrey
as Stephanie Phillips (1 episode)
Jim Parrack
as Nick Hurley (1 episode)
Jennifer Hall
as Daphne Everett (1 episode)
Kiko Ellsworth
as Willie Taylor (1 episode)
Kaj-Erik Eriksen
as Frank Smith (1 episode)
Olivia Burnette
as Sarah Lowell (1 episode)
Jamie Luner
as Amanda Reed (1 episode)
Jonathan Adams
as Thomas Zuri (1 episode)
Steven Culp
as William Skinner (1 episode)
Jonathan LaPaglia
as Agent Brent Langer (3 episodes)
China Anne McClain
as Kayla Vance (1 episode)
Christian Clemenson
as (1 episode)
Daniel Travis
as (1 episode)
Ned Vaughn
as Captain Dean Pullman (1 episode)
Diane Delano
as (1 episode)
Jayne Brook
as (1 episode)
Elizabeth Peña
as Lina Reyes (1 episode)
Charles Durning
as Ernie Yost (1 episode)
Daniel Gillies
as Royal Marine Major Peter Malloy (1 episode)
Alex Frost
as Jerry (1 episode)
Lisa Sheridan
as Krista Dalton (1 episode)
Scott Grimes
as Danny Price (1 episode)
Eva Tamargo
as (1 episode)
Robin Thomas
as Neil Fleming (1 episode)
Sherilyn Fenn
as Jane Doe / Suzanne McNeil (1 episode)
Scott Holroyd
as P.O. Kevin Massey (1 episode)
Max Gail
as (1 episode)
Tim DeKay
as Senator Patrick Kiley (1 episode)
Rico Rodriguez
as Travis Buckley (1 episode)
Zack Ward
as Billy Krieg (1 episode)
Brittney Powell
as Jamie Carr (1 episode)
Chelsea Field
as Jocelyn Wayne (1 episode)
Kimberly Oja
as Karen Wilkerson (1 episode)
Hilary Angelo
as Jessica Smith (1 episode)
Tom Wright
as Sam Kelleher (1 episode)
Carlos Lacámara
as Joe Tabarez (1 episode)
Marieh Delfino
as Judy Moore (1 episode)
Merritt Wever
as Wendy Smith (1 episode)
Jorge-Luis Pallo
as Lt. Matthew Sanchez (1 episode)
Sarah Jane Morris
as EJ Barrett (8 episodes)
Merik Tadros
as Michael Rivkin (5 episodes)
For the best insights and data about the TV show NCIS, visit our main NCIS page.