All 107 actors in both Buffy the Vampire Slayer and NCIS
107 actors have appeared in both Buffy the Vampire Slayer and NCIS, across 652 episodes. The most-credited is Adam Busch, Warren Meers, First Evil in Buffy the Vampire Slayer and Arthur Jankowski in NCIS.
| Actor | In Buffy the Vampire Slayer | In NCIS | Eps | Eps |
|---|---|---|---|---|
| Adam Busch | Warren Meers, First Evil | Arthur Jankowski | 16 | 1 |
| Leonard Roberts | Forrest Gates | P.O. Howard Carter | 12 | 1 |
| Rudolf Martin | Dracula | Ari Haswari | 1 | 7 |
| Adam Kaufman | Parker Abrams | Homicide Detective Philip McCadden | 5 | 2 |
| Sarah Hagan | Amanda | Sandy | 10 | 1 |
| Ken Lerner | Principal Flutie | Albert Hencheck | 4 | 1 |
| Carlease Burke | Detective Winslow | D'Arcy McKinna | 1 | 3 |
| Jack Conley | Cain | Metro Detective Danny Sportelli | 1 | 3 |
| Rif Hutton | Initiative Leader | Marine General Phillip Braxton | 1 | 2 |
| Rob Benedict | Jape | Aaron Alan Wright | 2 | 1 |
| Brian Thompson | Luke, The Judge | Master Chief Vince Nutter | 4 | 1 |
| Robin Sachs | Ethan Rayne | MI5 Inspector Andrew Challis | 4 | 1 |
| Alastair Duncan | Collins | Peter Velo, Ron Davenport | 2 | 2 |
| Christian Clemenson | Balthazar | Perry Sterling | 1 | 1 |
| Julie Benz | Darla | Mrs. Denise Johnson | 5 | 1 |
| Larry Bagby | Larry Blaisdell | Craig Wilson | 6 | 1 |
| Troy Blendell | Jinx | Bernard Wilson | 6 | 1 |
| Andy Umberger | D'Hoffryn | FBI Agent Freedman | 4 | 1 |
| Chad Lindberg | Dave | Joey Peanuts | 1 | 2 |
| Jack McGee | Doug Perren | Det. Floyd, Richard "Rick" Jordan | 1 | 2 |
| Jeremy Ratchford | Lyle Gorch | Baltimore Police Detective Ramsey Malone | 2 | 1 |
| Nick Chinlund | Major Ellis | Detective Steve Rosetti | 2 | 1 |
| Conor O'Farrell | Colonel McNamara | William Danforth | 3 | 1 |
| Geoff Meed | Mag, Andrew Borba | Corporal David Stenson | 3 | 1 |
| James MacDonald | Detective Stein | Capt. Faul, Navy Admiral Norton Padgett | 3 | 2 |
| Amanda Fuller | Eve, First Evil | Jennifer Shields | 1 | 1 |
| Chet Grissom | Detective | Rupert Kittridge | 2 | 1 |
| David Meunier | Rat-Faced Demon | Wade Cutler | 1 | 1 |
| Jack Stehlin | Doctor Angleman | Navy Cmdr. Harry Wilder | 3 | 1 |
| Kelly Smith | Innocent Girl | Emily Miller | 1 | 1 |
| Kirsten Nelson | Lorraine Ross | Beth Banks | 2 | 1 |
| Oliver Muirhead | Phillip | Jay Danorth | 2 | 1 |
| Richard Riehle | Merrick | Walt Osorio | 1 | 2 |
| Robin Riker | Catherine Madison | Saleena Lockhart | 1 | 1 |
| Steven W. Bailey | Cave Demon | Dexter Murphy | 3 | 1 |
| John Rosenfeld | Vamp Lackey #2 | FBI Agent Charles | 1 | 2 |
| Robert Catrini | Prof. Riegert | General Floyd Brancato, Jake Ford | 1 | 2 |
| Chad Todhunter | Rickie | Pete Lewis | 1 | 1 |
| Christopher Wiehl | Owen Thurman | Ramsay Witman A.K.A. John Joseph Manning | 1 | 1 |
| Dave Power | Zach | Corporal Dave Ramsey | 1 | 1 |
| David Haydn-Jones | Hobson | Marine Capt. Jim Mills | 1 | 1 |
| Kevin Rankin | Donny | Dennis Moran | 1 | 1 |
| Lee Garlington | Jessica Harris | Mary Hanlan | 1 | 1 |
| Margaret Easley | Curator | Sara Nelson | 1 | 1 |
| Musetta Vander | Miss Natalie French | Julie Merriweather | 1 | 1 |
| Peggy Stewart | Ms. Barton | Elderly Lady | 1 | 1 |
| Rick Gonzalez | Thomas | Lenny Machaca | 1 | 1 |
| Stuart McLean | Philip Henry | Malcolm Turro | 1 | 1 |
| Adam Clark | Cop | Fred Johnson | 1 | 1 |
| Benita Krista Nall | Young Woman | Amanda Wright | 1 | 1 |
| Brian Gross | Tor | Petty Officer Colin Dixon | 1 | 1 |
| Casey Sander | Tony Harris | Ed Gantry | 1 | 1 |
| Channon Roe | Jack | Sergeant Gordon Lambro | 1 | 1 |
| Erica Luttrell | Karen | Allison Asher | 1 | 1 |
| Glenn Morshower | Mr. Newton | Cmdr. Robert Peters | 1 | 1 |
| James Michael Connor | Scientist | Andrew Pike | 2 | 1 |
| James Parks | Tector Gorch | Brian Sikes | 1 | 1 |
| Jeremy Garrett | Cameron Walker | Marine Capt. Patrick Barnett | 1 | 1 |
| Jonathan Goldstein | Mike | Glenn Block | 1 | 1 |
| Nathan Anderson | John Lee | Luke Walters | 1 | 1 |
| Patricia Bethune | Mrs. Kalish | Paulette Quinn | 1 | 1 |
| Ravil Isyanov | Monk | Nikolai Puchenko | 1 | 1 |
| Stefan Marks | Guard #1 | Navy Lieutenant Ian Floyd | 1 | 1 |
| Steve Rankin | Mr. Maclay | Sgt. Bill Atlas | 1 | 1 |
| Susan Ruttan | Doris Kroeger | Samantha "Sammy" Delfino | 1 | 1 |
| Teddy Lane, Jr. | Bouncer | Deputy Barney | 1 | 1 |
| Wade Williams | General Gregor | Larry Purcell | 1 | 1 |
| Wendy Worthington | Lunch Lady | Gila Shaw | 1 | 1 |
| Brett Wagner | Trucker | Grizzled Driver | 1 | 1 |
| Caroline Lagerfelt | Anne | Mrs. Victoria Mallard | 1 | 1 |
| Daniel Hagen | Frank | Calvin Hopper | 1 | 1 |
| Eric Matheny | Colm | Former NCIS Agent Kip Klugman | 1 | 1 |
| Jeff Denton | Vampire | Marine C.O. Captain Jonah Ellis | 1 | 1 |
| Kate Orsini | Girl at Bronze | FBI Special Agent Isabel Monet | 1 | 1 |
| Kevin Christy | Josh | Clarence Tobett | 1 | 1 |
| Larry Clarke | Monk | Director | 1 | 1 |
| Lorna Scott | Miss Beakman | Sally Parker | 1 | 1 |
| Richard Wharton | Homeowner | Squeegee Man | 1 | 1 |
| Rob Nagle | Robson | Wayne Usher | 1 | 1 |
| Seth Coltan | Security Guard #2 | Deputy Allen Smedley | 1 | 1 |
| Abigail Mavity | Sara Age 8 | Jordyn Wright | 1 | 1 |
| Cameron Bender | Stoner | Martin Gates | 1 | 1 |
| Dierdre Holder | Hospital Doctor | Woman | 1 | 1 |
| Edward Edwards | Travis | Congressman | 1 | 1 |
| Gregory Scott Cummins | Big Ugly | Kobe "Beef" Carver | 1 | 1 |
| Jade Carter | Lieutenant | Marine Capt. Daniel Wise | 1 | 1 |
| Parry Shen | Student | Ben Richmond | 1 | 1 |
| Rob Boltin | Soldier | Marine Capt. Rod Newell | 1 | 1 |
| Robinne Lee | Sired Vampire | Doctor | 1 | 1 |
| Ryan Bittle | Mitch | Metro Detective Justin Kemp | 1 | 1 |
| Time Winters | Initiative Doctor | Scholarly Man #2 | 1 | 1 |
| Chaney Kley | Brad | Corporal Paul Brinkman | 1 | 1 |
| Charles Duckworth | Glenn | Joe Bennes | 1 | 1 |
| Derek Anthony | Imposing Demon | NCIS Maintenance Worker Lennox Kincaid | 1 | 1 |
| Derrick McMillon | Ron | Lt. Scott Bowen | 1 | 1 |
| Jason Christopher | Nonserious Guy | Motorcycle Rider | 1 | 1 |
| Tom Kiesche | Vampire | Bob Whitehead | 1 | 1 |
| Heather Sossaman | Sick Girl in Hospital | Maggie | 1 | 1 |
| Jonathan M. Woodward | Holden "Webs" Webster | Andy Nelson | 1 | 1 |
| Ken Strunk | Dead Janitor | Gas Station Owner | 1 | 1 |
| Mark Ankeny | Dean Guerrero | Barry Kester | 1 | 1 |
| Adam Lieberman | Carl | U.S. Customs Officer Cruz | 1 | 1 |
| Casey McCarthy | Julie | Biker Chick | 1 | 1 |
| Clint Culp | Bartender | Roy Baxter | 1 | 1 |
| Grant Garrison | Roy | P.O. Wilson | 1 | 1 |
| J. Robin Miller | Laura | Lt. Connors | 1 | 1 |
| David Grammer | Crazy Citizen | Stuart Crum | 1 | 1 |
← Buffy the Vampire Slayer × NCIS
Cast data from TVmaze, licensed CC BY-SA 4.0.