All 117 actors in both NCIS and Star Trek: Voyager
117 actors have appeared in both NCIS and Star Trek: Voyager, across 680 episodes. The most-credited is Pancho Demmings, Gerald Jackson in NCIS and Kradin Soldier in Star Trek: Voyager.
| Actor | In NCIS | In Star Trek: Voyager | Eps | Eps |
|---|---|---|---|---|
| Pancho Demmings | Gerald Jackson | Kradin Soldier | 15 | 1 |
| Martha Hackett | Celia Roberts | Seska | 1 | 13 |
| Susanna Thompson | Army Lt. Col. Hollis Mann | Borg Queen | 8 | 4 |
| Raphael Sbarge | Rupert Kritzer | Michael Jonas | 1 | 5 |
| Tim Kelleher | NCIS Special Agent Christopher "Chris" Pacci | Four of Nine | 5 | 1 |
| J. Paul Boehmer | Army CID Director Wayne Rogers | Kapitan, Borg Drone | 2 | 3 |
| Zoe McLellan | Special Agent Meredith "Merri" Brody | Crewman Tal Celes | 3 | 2 |
| Gregory Itzin | FBI Director, Spencer Downing | Dysek | 3 | 1 |
| Megan Gallagher | Under Secretary of the Navy Jennifer Leo | Jaryn | 3 | 1 |
| Rick Worthy | Navy Captain Logan Doyle | Noah Lessing, 3947/Cravic 122 | 1 | 3 |
| Albie Selznick | Marty Allen | Tak Tak, Tash | 1 | 2 |
| Brian Markinson | Marine EOD Sgt. Dan Trask | Lt. Peter Durst | 1 | 2 |
| Jack Axelrod | Shmeil Pinkhas | Chorus #1 | 2 | 1 |
| Marina Sirtis | Orli Elbaz | Counselor Deanna Troi | 3 | 3 |
| Robert Pine | Congressman Theodore Randolph, Golfer Ben | Liria | 2 | 1 |
| Scott Lawrence | DEA Agent Raymond Frank, Navy Captain Thomas Lind | Garon | 2 | 1 |
| Spencer Garrett | Commander Spenser | Weiss | 1 | 2 |
| Alicia Coppola | Faith Coleman | Lt. Stadi | 3 | 1 |
| Bertila Damas | Navy Master Chief Petty Officer Renee Quichera | Three of Nine | 1 | 1 |
| Brian George | Dr. Ameen Temani | O'Zaal | 1 | 1 |
| Bruce Davison | Lester Burm | Jareth | 1 | 1 |
| Bruce McGill | Henry Rogers | Captain Braxton | 1 | 1 |
| David Burke | George Ingram | Regular Guy | 1 | 1 |
| Jeff Austin | Colonel Mike Granger | Allos | 1 | 1 |
| Jessica Collins | Judy Ford | Linnis Paris | 1 | 1 |
| Lisa Kaminir | Dr. Romero | Lillias | 1 | 1 |
| Lise Simms | Kenna Reynolds | Annorax's Wife | 1 | 1 |
| Patrick Fabian | Ray Vincent | Taymon | 1 | 1 |
| Phil Morris | Navy Capt. Paul Martino | Lt. John Kelly | 1 | 1 |
| Ray Wise | Wayne Tobett | Arturis | 1 | 1 |
| Rebecca McFarland | Det. Rapp | Talli | 1 | 1 |
| Richard Riehle | Walt Osorio | Seamus | 2 | 2 |
| Robert Knepper | Benson Long | Gaul | 1 | 1 |
| Susan Diol | Doris Sawyer, Dr. Leslie Burke | Dr. Denara Pel | 2 | 2 |
| Tom Virtue | Frank Satner | Supervisor, Lieutenant Walter Baxter | 1 | 3 |
| Wade Williams | Larry Purcell | Trajis Lo-Tarik | 1 | 1 |
| William Morgan Sheppard | Marcin Jerek | Qatai | 1 | 1 |
| Alice Krige | Maggie Clarke | Borg Queen | 1 | 2 |
| Ivar Brogger | Simon Katz | Barus, Orum | 1 | 2 |
| James Read | Alan Newhall | Jaffen | 1 | 2 |
| Tim De Zarn | David Runion | Haliz, Yediq | 1 | 2 |
| Titus Welliver | Navy Capt. Roger Walsh | Commander Maxwell "Max" Burke | 1 | 2 |
| Stan Ivar | Former NCIS Special Agent Ben Robinson | Mark | 2 | 2 |
| Robert Picardo | Retired Marine Gunnery Sergeant Dale Harding | Dr. Lewis Zimmerman, Equinox EMH | 1 | 4 |
| Adrian Sparks | Hugo Radcliffe | Magistrate | 1 | 1 |
| Bahni Turpin | Camille West | Swinn | 1 | 2 |
| Christopher Darga | Skip Harris | Y'Sek | 1 | 1 |
| Clint Carmichael | Young Jackson Gibbs | Hirogen Hunter | 1 | 1 |
| David Clennon | Max Ellswood | Dr. Crell Moset | 1 | 1 |
| Dennis Cockrum | NSA Tech, Senator | Orek | 2 | 1 |
| Don McManus | Mark Stafford | Zio | 1 | 1 |
| Glenn Morshower | Cmdr. Robert Peters | Guard #1 | 1 | 1 |
| Googy Gress | Bartender | Overlooker | 1 | 1 |
| Jennifer Gatti | Negotiator Arkin | Libby | 1 | 1 |
| Joel Polis | Ronald Ostrowski | Ny Terla | 1 | 1 |
| John Rubinstein | Bob | John Evansville | 1 | 1 |
| Kate Vernon | Caroline Morrow | Commander Valerie Archer | 1 | 1 |
| Louis Ferreira | Harlan Atwood, Metro Detective Nick Burris | Trevis | 2 | 1 |
| Mark Harelik | Ron Levinson | Inspector Kashyk | 1 | 1 |
| Michael Canavan | Retired Navy Admiral Thomas Garscott | Curneth | 1 | 1 |
| Michael Wiseman | Chet Tyber | Beta-Hirogen | 1 | 2 |
| Musetta Vander | Julie Merriweather | Derran Tal | 1 | 1 |
| Nancy Youngblut | Joanna "Mama Jo" Dalton | Taleen | 1 | 1 |
| Robert Curtis Brown | Gary Tolin | Ambassador | 1 | 1 |
| Sandra Nelson | Jessica Terdei | Marayna | 1 | 1 |
| Tom Wright | Warden Sam Kelleher | Tuvix | 1 | 1 |
| John Rosenfeld | FBI Agent Charles | Technician #1 | 2 | 1 |
| Scott MacDonald | Militia Leader | Rollins | 1 | 2 |
| Aaron Lustig | Doctor Victor Kalsa | Doctor | 1 | 1 |
| Andy Milder | Gene Isaacson | Nar | 1 | 1 |
| Barton Tinapp | Man | Guard #1 | 1 | 1 |
| Brian McNamara | Noah Sykes | Jack Lansing | 1 | 1 |
| Bruce French | Floyd Vernon | Ocampa Doctor | 1 | 1 |
| Daniel Zacapa | Detective Martin Alonzo | Astronomer | 1 | 1 |
| Gregg Daniel | Parking Enforcement Officer Riggs | Mobar | 1 | 1 |
| John Kassir | Perry Swann | Gar | 1 | 1 |
| Jonathan Del Arco | Ned Senders | Fantome | 1 | 1 |
| Kathleen Garrett | Judge Mary Branigan | Tanis | 1 | 1 |
| Kenneth Tigar | Diggar Aldridge | Dammar | 1 | 1 |
| Kevin McCorkle | Col. Dan McClafferty | Alien Captain | 1 | 1 |
| Lisa LoCicero | Elena Devol | Miral Paris | 1 | 1 |
| Mark Sheppard | Young Mr. Pain | Leucon, Icheb's Father | 1 | 1 |
| Nathan Anderson | Luke Walters | Namon | 1 | 1 |
| Randy Oglesby | Army Brigadier General Scott Oliver | Kir | 1 | 1 |
| Richard Fancy | Leonard Weiss | Alien | 1 | 1 |
| Scott Klace | Dr. Timothy Hass | Dremk | 1 | 1 |
| Scott Miles | Pvt. Bellows | Terek | 1 | 1 |
| Sherman Augustus | Marine Cpt. Daniel Lemay | Hij'Qa | 1 | 1 |
| Valerie Wildman | Valerie Kordish | Nevala | 1 | 1 |
| Wayne Péré | Stanley Springer | Guill | 1 | 1 |
| Beverly Leech | Vice Admiral Janet Kleibor | Dayla | 1 | 1 |
| Brad Greenquist | Dr. Damon Shore | Demmas | 1 | 1 |
| Javier Grajeda | Dr. Kelly Whelan | Carl | 1 | 1 |
| John Prosky | Carl Dalton | Otrin | 1 | 1 |
| Mark L. Taylor | Dr. Harvey Kimball | Jarlath | 1 | 1 |
| Mary Anne McGarry | Fern Robbins | Tabris | 1 | 1 |
| Michael Ensign | Doctor Ishmael Havana | Bard | 1 | 1 |
| Michael Shamus Wiles | Jimmy the Bartender | Bosaal | 1 | 1 |
| Miguel Pérez | Federal Marshal Van Driver | Physician | 1 | 1 |
| Paul Terrell Clayton | Navy Commander Carl Davis | Andrews | 1 | 1 |
| Robert Clendenin | Pharmacist | Vidiian Surgeon | 1 | 1 |
| Robin Sachs | MI5 Inspector Andrew Challis | General Valen | 1 | 1 |
| Stoney Westmoreland | Larry Diamond | Warlord | 1 | 1 |
| Tamara Craig Thomas | Lisa Kerr | Haley | 1 | 1 |
| Brian Fitzpatrick | Willis Hirst | Tedran | 1 | 1 |
| Douglas Spain | Ceasar Bernal | Young Chakotay | 1 | 1 |
| Iris Bahr | Beverly Berkshire | Female Cadet | 1 | 1 |
| James Parks | Brian Sikes | Vel | 1 | 1 |
| Stephen O'Mahoney | CEO Paul Newhope | Med Tech | 1 | 1 |
| Eric Steinberg | Marcos Siazon | Ankari | 1 | 1 |
| Larry Cedar | Jason Kaplan | Tersa | 1 | 1 |
| Scott Alan Smith | Det. Mauceri | Doyle | 1 | 1 |
| Derek Anthony | NCIS Maintenance Worker Lennox Kincaid | Ensign | 1 | 1 |
| Grant Garrison | P.O. Wilson | Cadet | 1 | 1 |
| Todd Jeffries | Thomas Gardiner | Hirogen One | 1 | 1 |
| Robert Mammana | Sheriff Greg Pearson | Security Officer #1 | 1 | 1 |
| Christinna Chauncey | Andrea Morton | Level Blue Nurse | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.