All 143 actors in both NCIS and True Blood
143 actors have appeared in both NCIS and True Blood, across 588 episodes. The most-credited is John Billingsley, Jackson Scott in NCIS and Mike Spencer in True Blood.
| Actor | In NCIS | In True Blood | Eps | Eps |
|---|---|---|---|---|
| John Billingsley | Jackson Scott | Mike Spencer | 1 | 17 |
| Tara Buck | P.O. Tara Marshall | Ginger | 1 | 17 |
| Patricia Bethune | Paulette Quinn | Jane Bodehouse | 1 | 16 |
| Todd Lowe | NCIS Special Agent Chad Dunham | Terry Bellefleur | 3 | 9 |
| Jessica Tuck | Gloria Caplinger | Nan Flanagan | 1 | 9 |
| Michael McMillian | David Kemmons | Steve Newlin | 1 | 8 |
| Don Swayze | Logan Clay, Pete Walker | Gus | 2 | 6 |
| Louis Herthum | Ernest McCormick | JD | 1 | 7 |
| Elayn J. Taylor | Odette Malone | Mable | 5 | 1 |
| Erik Passoja | FBI Deputy Director Wayne Sweeney | Sickly-Looking Vampire, Stanley | 4 | 2 |
| Lauren Bowles | Mary Wiles, Nance Freeman | Holly Cleary | 2 | 4 |
| Robert Patrick | Colonel Merton Bell | Jackson Herveaux | 1 | 5 |
| Carolyn Hennesy | Secretary of The Navy Tara Flynn | Rosalyn Harris | 1 | 10 |
| Ashley Jones | Nancy Douglas | Daphne Landry | 1 | 8 |
| Courtney Ford | Navy Petty Officer 2nd Class Kaylen Burrows | Portia Bellefleur | 1 | 8 |
| Giles Matthey | Daniel Budd | Faerie Claude | 3 | 9 |
| Johnny Ray Gill | Royce Layton | Tyrese | 1 | 3 |
| Kevin Alejandro | Jaime Jones | Jesus Velasquez | 1 | 3 |
| Lindsay Pulsipher | Tina Ellis | Crystal Norris | 1 | 3 |
| John Prosky | Carl Dalton | David Finch | 1 | 6 |
| Kelly Overton | Metro Detective Megan Hanley | Rikki Naylor | 1 | 6 |
| Dean Chekvala | Frank Holtz | Roy | 1 | 8 |
| Jamie Gray Hyder | Navy Petty Officer First Class Heidi Orr | Danielle | 1 | 11 |
| Valerie Cruz | Anna | Isabel | 1 | 5 |
| Dustin Ingram | Ozzie Duncan | Ronnie | 1 | 4 |
| Graham Shiels | Martin Jansen | Liam | 1 | 4 |
| Marque Richardson II | Navy Seaman Joey Elson | Kenneth | 1 | 11 |
| James Harvey Ward | Andre Fullerton | Felton Norris | 1 | 8 |
| Abbie Cobb | Melanie Keller | Lindsey | 1 | 1 |
| Brianna Brown | Melinda Martin | Leda | 1 | 3 |
| Chris Coy | Riley Davis | Barry the Bellboy | 1 | 5 |
| Daniel Gillies | Royal Marine Major Peter Malloy | Jon | 1 | 1 |
| Dendrie Taylor | Janet LaCombe | Beverleen | 1 | 5 |
| Janina Gavankar | Angela Lopez | Luna Garza | 1 | 1 |
| Valarie Pettiford | Sonia Eberhart | Mary Wright | 2 | 2 |
| Wes Brown | Marine First Lieutenant Jeremy Nolan | Luke McDonald | 1 | 7 |
| Chad Todhunter | Pete Lewis | Trevor | 1 | 5 |
| Galadriel Stineman | Resident Sierra Krueger | Joyce Watney | 1 | 2 |
| Gregg Daniel | Parking Enforcement Officer Riggs | Reverend Daniels | 1 | 5 |
| Keone Young | Lee Sung | Hido Takahashi | 1 | 5 |
| Melinda Page Hamilton | Kathy Sheldon, Vanessa Tillman | Miss Steeler | 2 | 1 |
| Andrew Rothenberg | Bruce Solomon | Malcolm | 1 | 3 |
| Robert Baker | Seaman | Mack | 1 | 3 |
| Brett Rickaby | Steve Diamond | Vince | 1 | 4 |
| Chris Butler | Clarence | Emory | 1 | 4 |
| Henri Lubatti | Andre Yorka | Nigel Beckford | 1 | 4 |
| Stephanie Erb | Rachel Nasry | Luellen | 1 | 5 |
| Cooper Huckabee | Kyle Larson | Joe Lee Mickens | 1 | 7 |
| Brendan McCarthy | Owen Dixon | Nate | 1 | 8 |
| Anna Khaja | ADA Eliza Hutchins | Zaafira | 1 | 5 |
| Conor O'Farrell | William Danforth | Judge Clements | 1 | 2 |
| Dean Norris | Vestman | Leon | 1 | 1 |
| Helen Sadler | Julie | Claudija | 1 | 3 |
| Jim Hoffmaster | Administrator | Cart Pusher | 1 | 3 |
| Karina Logue | Mrs. Johnson | Denise Rattray | 1 | 2 |
| Linc Hand | Navy Petty Officer First Class Damien Hunter | Officer Stutz | 1 | 1 |
| Mariana Klaveno | Margot DeMint | Lorena Krasiki | 1 | 2 |
| Matt Cook | CID Agent Dolan Thompson | Jessie | 1 | 3 |
| Neil Hopkins | Jeremy Davison | Faerie Claude | 1 | 1 |
| Niko Nicotera | Albert Leary | Dealer | 1 | 1 |
| Shannon Lucio | Amy Harrison | Caroline Compton | 1 | 3 |
| Stacy Haiduk | Melissa Dorn | Jenny | 1 | 4 |
| Todd Giebenhain | Leo Vairo | Junior | 1 | 1 |
| Vincent Ward | Cop, Sal | Hollis | 2 | 1 |
| Del Zamora | Sergio Morales | Don Bartolo | 1 | 4 |
| David Bickford | Catholic Priest | Reverend Skinner | 1 | 3 |
| Haley Brooke Walker | Mila | Crystal Norris | 1 | 3 |
| Aaron Perilo | Petty Officer Third Class Brian Smith | Blackburn | 1 | 5 |
| Betsy Rue | Sasha Gordon | Shawnelle | 2 | 1 |
| Jason Kelley | Marine Master Sergeant Ramsey Dillon | AHQ Guard #1 | 1 | 2 |
| Matthew Holmes | Griffin Dorn | Charles Dupont | 1 | 2 |
| Preston Jones | Navy Petty Officer First Class David Collins | Dirk | 1 | 2 |
| Robert Catrini | General Floyd Brancato, Jake Ford | Vampire Lawyer | 2 | 1 |
| Ronnie Gene Blevins | Ronald Nowakowski | T-Dub | 1 | 2 |
| Steve Rankin | Sgt. Bill Atlas | Gordon Pelt | 1 | 2 |
| Greg Collins | Police Officer Metro PD | Gabe | 1 | 4 |
| Nondumiso Tembe | Navy Petty Officer First Class Josie Sparks | Mavis | 1 | 4 |
| Suzanne Rico | Reporter, Suzanne McRobert | Suzanne Rico | 2 | 3 |
| Brandon Molale | Army CID Special Agent Jack Reynolds | Officer Featherstone | 1 | 5 |
| Gideon Emery | Rudolph Stalin | Justin | 1 | 1 |
| Jonathan Kowalsky | Nate Holt | Todd Jeffries | 1 | 3 |
| Kathleen York | Stephanie Flynn | Madeline Kapneck | 1 | 1 |
| Nicholas Gonzalez | David Silva | Jerry | 1 | 1 |
| Rebecca McFarland | Det. Rapp | Maggie | 1 | 1 |
| Rebecca Wisocky | Jody Carvell | Queen Mab | 1 | 1 |
| Virginia Watson | Nurse Ruth Corruthers | Woman in Church | 1 | 1 |
| Gary Kraus | Chuck Parnell | Mailman Vampire, Man in Bar | 1 | 2 |
| Bess Armstrong | U.S. Senator Denise O’Hara | Nancy Mills | 1 | 1 |
| Christopher Gartin | Jason Tupperman | Hugo | 1 | 3 |
| James Parks | Brian Sikes | Mack Rattray | 1 | 2 |
| Jonathan Kells Phillips | Senator Shawn Kelly | Male Paramedic | 1 | 1 |
| Mandy Levin | Shirley Ives | Nurse | 1 | 1 |
| Matt Bushell | Marine Lt. Rob King | Gondry | 1 | 1 |
| Randy Oglesby | Army Brigadier General Scott Oliver | Rev. Theodore Newlin | 1 | 1 |
| Rick Overton | Elmer Barlow | Stewart Shelby | 1 | 1 |
| Holly Hawkins | Scholarly Woman #1 | Uppity Churchgoer Woman, Townie Woman | 1 | 3 |
| Jeremy Denzlinger | NCHP Colonel Bill Timmons | Wayne | 1 | 3 |
| Lawrence Adimora | Navy Seaman Jacob Pierway | Jemarcus Kessler | 1 | 2 |
| Andrew Thacher | West Virginia State Trooper Sergeant Paul Westgard | Officer Innes | 1 | 1 |
| Brendan Patrick Connor | Travis "Piggy" Phelps | Man with Beer | 1 | 1 |
| Drew Powell | Fred Hadley | Ryder | 1 | 1 |
| Eric Jungmann | Andy Pringle | Chip | 1 | 1 |
| Lorna Scott | Sally Parker | Sav-A-Bunch Shopper | 1 | 1 |
| Paul Rae | Steve Hager | The Figure | 1 | 1 |
| Rebecca Tilney | Madeline Dumont | Dr. Sekuler | 1 | 1 |
| John Burke | Doctor Chris Friedman | Jerry McCafferty | 1 | 2 |
| Randy Wayne | Grant Bridges | Matt | 1 | 2 |
| Cheryl White | Rebecca Biddle | Mrs. Hamby | 1 | 1 |
| David Dean Bottrell | Assistant Director of Operations Donald Linder | Professor Kannell | 1 | 1 |
| John Henry Canavan | Jake Munro | Good Old Boy Vampire | 1 | 1 |
| Lenny Schmidt | Eddie Banasek | Sidney | 1 | 1 |
| Myk Watford | Army Major Eric Sweigart | Bunki Police Officer | 1 | 1 |
| Scott Alan Smith | Det. Mauceri | Dr. Offutt | 1 | 1 |
| Shishir Kurup | Khalil Farooq | Guru Sanbir Dutta | 1 | 1 |
| Stephen Jared | David | Man in Bar | 1 | 1 |
| Zoran Korach | Metro Police Officer Verma | Hayes | 1 | 1 |
| Betsy Baker | Ramona | Midwife | 1 | 1 |
| Cory Tucker | Brendan | Recruitment Officer | 1 | 1 |
| Cyd Strittmatter | Joanne Wright | Claire Shelby | 1 | 1 |
| David Pease | Sheriff Lee Chandler | State Trooper | 1 | 1 |
| Derek Ray | Navy Lieutenant Commander David Hernandez | Brent | 1 | 1 |
| Drew Rausch | Brandon Singer | Julian Fortenberry | 1 | 1 |
| Elise Robertson | Alice Miller | Rita | 1 | 1 |
| Essam Ferris | Yann | Moroccan Citizen | 1 | 1 |
| Paul Gregory | Senator McCormick | Physician #1 | 1 | 1 |
| Scott Klace | Dr. Timothy Hass | Jimmy | 1 | 1 |
| Troy Vincent | Lawyer | Lab Coat Scientist | 1 | 2 |
| Matt Riedy | Navy Rear Adm. Kenneth Kirkland | Sgt Mitch Coburn | 1 | 1 |
| Aubrey Deeker | Former Navy Commander Brian Mitchell | Vampire | 1 | 1 |
| Brent Chase | Navy Petty Officer Third Class Nathan Thomas | Camp Guard | 1 | 1 |
| Brett Rice | Captain RJ Hammond | Paul Mills | 1 | 1 |
| Clint Culp | Roy Baxter | Vampire Hank | 1 | 1 |
| Melody Butiu | Patricia Richert | Dr. Isani | 1 | 1 |
| Timothy Hornor | Ian | Mr. Jenkins | 1 | 1 |
| Travis Joe Dixon | Navy Chief Petty Officer Leland Wiley | Naked Prisoner | 1 | 1 |
| Ken Luckey | John Kendall | Zander | 1 | 2 |
| Sam Schuder | Kelly Gibbs | 11 Year Old Faerie Girl #2 | 1 | 2 |
| Flor De Maria Chahua | Nurse | Young Woman | 1 | 1 |
| George Gerdes | Field Marshall Nigel Rand | Sid Matt Lancaster | 1 | 1 |
| Jamie Renee Smith | Rhiannon | Melanie | 1 | 1 |
| Kimberly Atkinson | NCIS Special Agent Roberta Wells | Luisa | 1 | 1 |
| Bruno Gunn | Air Boss | Hep V Vampire | 1 | 1 |
| Keenan Henson | Henry Coldwell | Guard Wickline | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.