All 135 actors in both Buffy the Vampire Slayer and CSI: Crime Scene Investigation
135 actors have appeared in both Buffy the Vampire Slayer and CSI: Crime Scene Investigation, across 481 episodes. The most-credited is Armin Shimerman, Principal Snyder in Buffy the Vampire Slayer and Oscar in CSI: Crime Scene Investigation.
| Actor | In Buffy the Vampire Slayer | In CSI: Crime Scene Investigation | Eps | Eps |
|---|---|---|---|---|
| Armin Shimerman | Principal Snyder | Oscar | 19 | 1 |
| Adam Busch | Warren Meers, First Evil | Max Dinello | 16 | 1 |
| D.B. Woodside | Principal Robin Wood | Marlon Waylord | 14 | 1 |
| Robia LaMorte | Jenny Calendar, First Evil | Joan Marks | 14 | 1 |
| Bailey Chase | Graham Miller | Marty Mayron | 12 | 1 |
| Marc Blucas | Riley Finn | Adam King | 9 | 1 |
| Charlie Weber | Ben Wilkinson | Corey Archfield | 14 | 1 |
| Harry Groener | Mayor Richard Wilkins III, First Evil | Peyton Tallman | 14 | 1 |
| Leonard Roberts | Forrest Gates | Kyle Decker | 12 | 1 |
| Conor O'Farrell | Colonel McNamara | Undersheriff McKeen | 3 | 13 |
| Ken Lerner | Principal Flutie | Jerry Nivens | 4 | 1 |
| Lindsay Crouse | Maggie Walsh | Mona Lavalle | 9 | 1 |
| Christopher Wiehl | Owen Thurman | Hank, Emergency Service Guy | 1 | 7 |
| Joel Grey | Doc | Hank Kasserman | 3 | 1 |
| Kali Rocha | Halfrek | Ms. Fowler | 7 | 1 |
| Indigo | Rona | Cha Cha Romero | 8 | 1 |
| Glenn Morshower | Mr. Newton | Sheriff Brian Mobley | 1 | 7 |
| Ethan Erickson | Percy West | Jake | 5 | 1 |
| Jeff Kober | Rack, Zachary Kralik | Roger Wilder, Walter Douglas Hicks | 4 | 2 |
| Kelly Connell | Norman Pfister | Randy Gesek | 2 | 4 |
| Larry Bagby | Larry Blaisdell | Hank Dudek | 6 | 1 |
| Andy Umberger | D'Hoffryn | Rob Rhoda | 4 | 1 |
| Jack Conley | Cain | Jack Herson | 1 | 2 |
| Jeremy Ratchford | Lyle Gorch | Tommy Sconzo | 2 | 1 |
| Julie Benz | Darla | Heidi Wolff | 5 | 1 |
| Thad Luckinbill | RJ Brooks | Michael Wilson, Timothy Johnson | 1 | 2 |
| Geoff Meed | Mag, Andrew Borba | Roy McCall | 3 | 1 |
| Nick Chinlund | Major Ellis | Gus Davis, Mickey Rutledge | 2 | 2 |
| Randy Thompson | Doctor Kriegel | Colonel Isaac Phillips | 3 | 1 |
| Carlos Jacott | Ken | Dr. Garner | 1 | 1 |
| Channon Roe | Jack | Douglas Granger, Lenny "Moondog" Vanders | 1 | 2 |
| Don Dowe | Construction Worker | Uniform | 1 | 1 |
| Harrison Young | Old Man | Judge Cohen | 1 | 3 |
| Jack McGee | Doug Perren | Richard O'Malley, Road manager | 1 | 2 |
| James MacDonald | Detective Stein | Officer Kenneth Ward | 3 | 1 |
| Jennifer Sky | Heidi | Matilda | 1 | 1 |
| Kevin Weisman | Dreg | Craig Higgins | 3 | 1 |
| Michael Cudlitz | Bob | Josh Barston, Officer Spencer | 1 | 2 |
| Roger Morrissey | Demon, Tapparich | Roger | 2 | 1 |
| Willie Garson | Guard | Bud Simmons / Sexy Kitty | 1 | 1 |
| Alastair Duncan | Collins | Graham Deveraux | 2 | 1 |
| Darris Love | Hallmate | Det. Ezekiel Holstein | 1 | 2 |
| John O'Leary | Council Member #5, Kaltenbach | Cranky Old Man | 2 | 1 |
| Lee Garlington | Jessica Harris | Mrs. Briggs, Mrs. Frommer | 1 | 2 |
| Nichole Hiltz | Diana | Dancer, Natasha Rifkin | 1 | 2 |
| Rob Nagle | Robson | Mark Turner | 1 | 2 |
| Amanda Fuller | Eve, First Evil | Cara Stone | 1 | 1 |
| Brandon Keener | Lance Brooks | Owen Linder | 1 | 1 |
| Chad Todhunter | Rickie | Trent Reager | 1 | 1 |
| Clea DuVall | Marcie Ross | Abagail Spencer | 1 | 1 |
| Josh Jacobson | Teen | Joel Steiner, Boy | 1 | 3 |
| Kaarina Aufranc | Nancy | Jessica Marcus | 1 | 1 |
| Mark Daneri | Scientist #2 | George | 1 | 1 |
| Raymond O'Connor | Teeth | Salesman | 1 | 1 |
| Rob Benedict | Jape | Brian Morley | 2 | 1 |
| Aldis Hodge | Masked Teen | Tony Thorpe | 1 | 2 |
| Bonita Friedericy | Manager, Mrs. Finkle | Mrs. Ludford | 2 | 1 |
| Clayne Crawford | Rodney | Henry McFadden, Tommy Ruby | 1 | 2 |
| Ingo Neuhaus | Daryl Epps | Trent Calloway | 1 | 1 |
| James Parks | Tector Gorch | Jonathan Wax | 1 | 1 |
| Michael Earl Reid | Custodian | Gambler Rufus Sanders | 1 | 1 |
| Pat Crawford Brown | Wig Lady | Female Dental Patient | 1 | 1 |
| Rick Gonzalez | Thomas | Marcus | 1 | 1 |
| Rudolf Martin | Dracula | Cameron Klinefeld | 1 | 1 |
| Wade Williams | General Gregor | Mr. Reston | 1 | 1 |
| Joe Ochman | Janitor | Bird Watcher | 1 | 3 |
| Bryan Cuprill | Roy | Seattle Detective | 2 | 1 |
| James Wellington | Nightwatchman | Joseph Felton, Mean Customer | 1 | 2 |
| Lily Knight | Gronx | Delia Brooks | 2 | 1 |
| Matthew Lang | 2nd Male Partygoer, High Priest Minion | 1st Officer Clark | 2 | 1 |
| Shonda Farr | April | Lori | 1 | 2 |
| Alexandra Breckenridge | Kit Holburn | Tara | 1 | 1 |
| Amy Hathaway | Christine | Diane Palento | 1 | 1 |
| Brett Wagner | Trucker | Prison Cell Mate | 1 | 1 |
| Caroline Lagerfelt | Anne | Marjorie Randell | 1 | 1 |
| Cate Cohen | Building Manager | Officer Kamen | 1 | 1 |
| Christopher Gorham | James Stanley | Corey | 1 | 1 |
| Eric Matheny | Colm | Dr. Hawkins | 1 | 1 |
| John Hawkes | George | Terry Wicker | 1 | 1 |
| Pedro Pascal | Eddie | Kyle Hartley / Cheshire Cat / Paramedic #2 | 1 | 1 |
| Richard Wharton | Homeowner | Kenny Valdez | 1 | 1 |
| Alex Skuby | Vincent | FBI Agent Paul Briggs, Federal Agent | 1 | 2 |
| Chet Grissom | Detective | Restaurant Manager | 2 | 1 |
| David Meunier | Rat-Faced Demon | Barry Lawrence, Boyd Waldrip | 1 | 2 |
| Tamara Braun | Frenzied Girl, Tara | Coco | 2 | 1 |
| Christian Clemenson | Balthazar | Charles Pellew | 1 | 1 |
| Christopher May | Male Customer | Roger | 1 | 1 |
| Dave Power | Zach | Bryce Gundy | 1 | 1 |
| David Wells | The Cheese Man | Elliot Beckman | 1 | 1 |
| Doug Jones | Gentleman | Grinder | 1 | 1 |
| Jeff Ricketts | Weatherby | Deliveryman | 2 | 1 |
| Jeremy Roberts | Kakistos | Mr. Arnz | 1 | 1 |
| Kelly Smith | Innocent Girl | Allison Shram | 1 | 1 |
| Kevin Christy | Josh | Witness | 1 | 1 |
| Kris Iyer | Nigel | ER Surgeon | 2 | 1 |
| Steve Rankin | Mr. Maclay | Troy Thompson | 1 | 1 |
| Todd Stashwick | M'Fashnick Demon | Mark Bunin | 1 | 1 |
| Vaughn Armstrong | Cop | Dr. Dennis Keil | 1 | 1 |
| Will Rothhaar | James | Sean Becker | 1 | 1 |
| Alexandra Lee | Young Buffy | Josie, Rebecca McGill | 1 | 2 |
| Patricia Bethune | Mrs. Kalish | Teacher, Wilma Shaw | 1 | 2 |
| Chaney Kley | Brad | Brent Martin | 1 | 1 |
| Edward Edwards | Travis | Mr. Darwell | 1 | 1 |
| Joe Howard | Priest | Logan Martin | 1 | 1 |
| Justin Urich | Wendell | Teddy Keller | 1 | 1 |
| Kevin Rankin | Donny | Shawn Curtis | 1 | 1 |
| Nathan Anderson | John Lee | Tom Finnerty | 1 | 1 |
| Rif Hutton | Initiative Leader | Vernon Porter | 1 | 1 |
| Tom Kiesche | Vampire | Larry Coombs | 1 | 1 |
| Clint Culp | Bartender | Mike Ithaca, Security Guard | 1 | 2 |
| Brian Tee | Intern | Denny Ocampo | 1 | 1 |
| Douglas Bennett | Phillip | Stranded Motorist | 1 | 1 |
| Keith Allan | Skinny Mental Patient | Fashion Photographer | 1 | 1 |
| Keith MacKechnie | Parent | Co-Pilot | 1 | 1 |
| Scot Zeller | Henchman | Brad Fante | 1 | 1 |
| Steve Heinze | Vampire #1 | Biker | 1 | 1 |
| Adam Lieberman | Carl | Dwight Connor | 1 | 1 |
| Carmine Giovinazzo | Boy | Thumpy G | 1 | 1 |
| Damani Roberts | Young Robin | Kevin | 1 | 1 |
| Daniel Spanton | Viking #1 | Dad | 1 | 1 |
| Heather Sossaman | Sick Girl in Hospital | Tiffany Bamford | 1 | 1 |
| J. Robin Miller | Laura | Amanda Freeman | 1 | 1 |
| Larry Clarke | Monk | Detective Sulik | 1 | 1 |
| Walter Jones | Edward | Street Racer | 1 | 1 |
| Charles Duckworth | Glenn | Ben | 1 | 1 |
| Grant Garrison | Roy | Kevin Watson | 1 | 1 |
| Jimmie F. Skaggs | Courier | Tookie | 1 | 1 |
| Kate Orsini | Girl at Bronze | Mini-Mart Clerk | 1 | 1 |
| Teddy Lane, Jr. | Bouncer | Uniform Officer | 1 | 1 |
| John Rosenfeld | Vamp Lackey #2 | Child Advocate | 1 | 1 |
| Noel Gugliemi | Vince | David Ramirez | 1 | 1 |
| Sara Van Horn | Older Nurse | Nana of the Bride | 1 | 1 |
| Zitto Kazann | Gypsy Man | Roman Wolenski | 1 | 1 |
| Lyndon Smith | Little Boy | Graham | 1 | 1 |
| Rob Boltin | Soldier | Mr. Copeland | 1 | 1 |
← Buffy the Vampire Slayer × CSI: Crime Scene Investigation
Cast data from TVmaze, licensed CC BY-SA 4.0.