List of NCIS characters
Notes
Sasha Alexander appeared in "A Man Walks Into a Bar..." via deleted scenes from earlier seasons; she also recorded a voice-over specifically for this episode.

List of NCIS characters

Section Title: Notes
Table Section Text: Sasha Alexander appeared in "A Man Walks Into a Bar..." via deleted scenes from earlier seasons; she also recorded a voice-over specifically for this episode.

Cast	Character	Rank/position	Seasons	First episode	Last episode	No. of episodes (credited)	Notes

Regular	Recurring	Guest

Mark Harmon	Leroy Jethro Gibbs	Supervisory Special Agent	1–	"Yankee White" (1.01)	375

Sasha Alexander	Caitlin "Kate" Todd	Special Agent	1–2	3, 8–9, 12	"The Lost Boys" (12.23)	51

Michael Weatherly	Anthony "Tony" DiNozzo	Senior Field Agent	1–13	"Family First" (13.24)	306

Pauley Perrette	Abby Sciuto	Forensic Specialist	1–15	"Two Steps Back" (15.22)	354

David McCallum	Donald "Ducky" Mallard	Historian	1–	375

Sean Murray	Timothy "Tim" McGee	Senior Field Agent	2–	1	"Sub Rosa" (1.07)	359

Cote de Pablo	Ziva David	Special Agent	3–11	3	"Kill Ari (Part I)" (3.01)	"Past, Present, and Future" (11.02)	189

Lauren Holly	Jenny Shepard	Director	3–5	3	9, 12	"The Lost Boys" (12.23)	65

Rocky Carroll	Leon Vance	Director	6–	5	"Internal Affairs" (5.14)	267

Brian Dietzen	Jimmy Palmer	Medical Examiner	10–	1–9	"Split Decision" (1.21)	276

Emily Wickersham	Eleanor Bishop	Special Agent	11–	11	"Gut Check" (11.09)	133

Wilmer Valderrama	Nicholas "Nick" Torres	Special Agent	14–	"Rogue" (14.01)	69

Jennifer Esposito	Alexandra Quinn	Special Agent	14	"Rendezvous" (14.24)	24

Duane Henry	Clayton Reeves	MI6 Officer	14–15	13	"Dead Letter" (13.23)	"Two Steps Back" (15.22)	47

Maria Bello	Jacqueline "Jack" Sloane	Psychologist, Special Agent	15–	15	"Skeleton Crew" (15.04)	42

Diona Reasonover	Kasie Hines	Forensic Specialist	16–	15	"One Man's Trash" (15.17)	24

Sentence(s)

Special Agent Caitlin "Kate" Todd (Sasha Alexander) first appears in the episode "Yankee White".

final_sentence: Special Agent Caitlin "Kate" Todd (Sasha Alexander) first appears in the episode "Yankee White".