All 118 actors in both NCIS and Star Trek: Enterprise
118 actors have appeared in both NCIS and Star Trek: Enterprise, across 606 episodes. The most-credited is Randy Oglesby, Army Brigadier General Scott Oliver in NCIS and Degra, Trena'L in Star Trek: Enterprise.
| Actor | In NCIS | In Star Trek: Enterprise | Eps | Eps |
|---|---|---|---|---|
| Randy Oglesby | Army Brigadier General Scott Oliver | Degra, Trena'L | 1 | 11 |
| Rick Worthy | Navy Captain Logan Doyle | Jannar | 1 | 10 |
| Matt Winston | Rick Carvell | Temporal Agent Daniels | 1 | 8 |
| Marco Sanchez | Alejandro Rivera | Corporal M. Romero | 7 | 1 |
| Rudolf Martin | Ari Haswari | Ravis | 7 | 1 |
| Michael Nouri | Mossad Director Eli David | Syrran (Arev) | 5 | 1 |
| Steven Culp | Navy Cmdr. William Skinner | Major J. Hayes | 1 | 5 |
| Tim Kelleher | NCIS Special Agent Christopher "Chris" Pacci | Pell | 5 | 1 |
| Derek Magyar | Cameron Dean | Commander Kelby, Ensign Kelby (Mirror Universe) | 1 | 4 |
| Sean McGowan | Lieutenant Wallace | Corporal F. Hawkins | 1 | 4 |
| Brigid Brannagh | Senator Constance Miller, Catherine Reynolds | Ruby | 3 | 1 |
| Marina Sirtis | Orli Elbaz | Counselor Deanna Troi | 3 | 1 |
| Dennis Cockrum | NSA Tech, Senator | Alien Barkeep | 2 | 1 |
| Matt Kaminsky | Henry Spivey | Cunningham | 1 | 2 |
| Melinda Page Hamilton | Kathy Sheldon, Vanessa Tillman | Feezal | 2 | 1 |
| Nathan Anderson | Luke Walters | Sergeant N. Kemper | 1 | 2 |
| Robert Pine | Congressman Theodore Randolph, Golfer Ben | Tavin | 2 | 1 |
| Scott MacDonald | Militia Leader | Commander Dolim | 1 | 8 |
| Gregory Itzin | FBI Director, Spencer Downing | Admiral Black (Mirror Universe), Captain Sopek | 3 | 2 |
| J. Paul Boehmer | Army CID Director Wayne Rogers | Officer (SS-untersturmführer #2), Mestral | 2 | 3 |
| Abby Brammell | Marine Sergeant Heather Dempsey | Persis | 1 | 3 |
| Annie Wersching | Deputy DA Gail Walsh | Liana | 1 | 1 |
| Brian Thompson | Master Chief Vince Nutter | Admiral Valdore | 1 | 3 |
| Bruce Davison | Lester Burm | Menos | 1 | 1 |
| Corey Mendell Parker | Metro Police Officer Bilik | Paul Mayweather | 1 | 1 |
| Enrique Murciano | Ray Cruz | Tolaris | 3 | 1 |
| Erick Avari | Col. Dan McClafferty | Jamin | 1 | 1 |
| Glenn Morshower | Cmdr. Robert Peters | MacReady | 1 | 1 |
| Keith Carradine | Manheim Gold | A.G. Robinson | 1 | 1 |
| Keone Young | Lee Sung | Mr Sato | 1 | 1 |
| Larry Cedar | Jason Kaplan | Tessic | 1 | 1 |
| Mark Rolston | George Westcott | Captain Magh, Kuroda Lor-ehn | 2 | 2 |
| Michael McGrady | Walter Dunn | Nausicaan Prisoner (Canamar) | 1 | 1 |
| René Auberjonois | Dr. Felix Blackwell | Ezral | 1 | 1 |
| Wade Williams | Larry Purcell | Garos | 1 | 1 |
| Brad Greenquist | Dr. Damon Shore | Captain Khata'n Zshaar, Rigelian Kidnapper #1 | 1 | 2 |
| Conor O'Farrell | William Danforth | Burzaan, D'Jamat | 1 | 2 |
| Josh Drennen | Curtis Beane | Thalen (Degra's Assistant) | 1 | 2 |
| John Rubinstein | Bob | Minister Kuvak, Mazarite Captain | 1 | 3 |
| Michael Reilly Burke | Frank Connell | Koss | 1 | 3 |
| Richard Riehle | Walt Osorio | Jeremy Lucas | 2 | 2 |
| Aaron Lustig | Doctor Victor Kalsa | Guri | 1 | 1 |
| Becky Wahlstrom | FET Marine Staff Sergeant Catherine Littleton | Cogenitor | 1 | 1 |
| Brett Rickaby | Steve Diamond | Yerdrin Lek | 1 | 1 |
| D.C. Douglas | Tom Speakman | Zepht | 1 | 1 |
| Erin Cummings | Marine Major Ellen Wallace | Prostitute #1 | 1 | 1 |
| Henri Lubatti | Andre Yorka | Ethan Novakovich | 1 | 1 |
| Jamie McShane | Samuel Hayes | Tactical Crewman | 1 | 1 |
| Jane Carr | Dr. Erica Heller | Mary Reed | 1 | 1 |
| Jim Beaver | Captain Tom O’Rourke | Admiral Daniel Leonard | 1 | 1 |
| Kaj-Erik Eriksen | Frank Smith | Udar | 1 | 1 |
| Kate McNeil | Commander Green | Commander Collins | 1 | 1 |
| Lawrence Monoson | Adam O'Neill | First Officer Matthew Ryan | 1 | 1 |
| Michael Ensign | Doctor Ishmael Havana | Dr. Oratt | 1 | 1 |
| Pat Healy | Chaplain Charles Gage, Jonathan Hanlan | Alien Slave (Mirror Universe) | 2 | 1 |
| Robert Rusler | Marine Lt. Colonel Curtis Teague | Orgoth | 1 | 1 |
| Roger Cross | Lt. Cmdr. David Warfield | Tret | 1 | 1 |
| Bruce Thomas | Richard Porter | Xindi-Reptilian Soldier #1 | 1 | 3 |
| Adam Clark | Fred Johnson | Josiah | 1 | 2 |
| John Rosenfeld | FBI Agent Charles | Mark Latrelle | 2 | 1 |
| Andrew Borba | Doctor Phillip Heller | Xindi-Reptilian Lieutenant | 1 | 3 |
| Bruce French | Floyd Vernon | Vulcan Elder | 1 | 1 |
| Christopher Darga | Skip Harris | Vorok | 1 | 1 |
| Crystal Allen | Laura | D'Nesh | 1 | 1 |
| Dave Power | Corporal Dave Ramsey | Ensign Jeffrey Pierce | 1 | 1 |
| Ed O'Ross | Dao Huang | Gaavrin | 1 | 1 |
| James Parks | Brian Sikes | Bennings | 1 | 1 |
| John Cothran, Jr. | Alfred Holbrook | Gralik Durr | 1 | 1 |
| John Vickery | Interpol Inspector Hugh Benson | Orak | 1 | 1 |
| Julia Rose | Female Bartender | Corporal J. McKenzie | 1 | 1 |
| Kristen Ariza | CIA Operations Officer Loretta Tennison | Augment #1 (Female #2) | 1 | 1 |
| Lamont Thompson | Sommers | ND Alien Pilgrim | 1 | 1 |
| Matt Malloy | George Pardo | Grish | 1 | 1 |
| Noa Tishby | DEA Agent Claire Connell | Amanda Cole | 1 | 1 |
| Patrick Fischler | George Stenner | Doctor Mercer | 1 | 1 |
| Richard Anthony Crenna | Chief Steward | Guard (Archer's Guard) | 1 | 1 |
| Ryan Honey | Colin Stone | Guard (Enterprise Brig (2153)) | 1 | 1 |
| Scott Klace | Dr. Timothy Hass | Goff | 1 | 1 |
| Stephanie Niznik | Sharon Bellows | Wraith | 1 | 1 |
| Steven Flynn | Roman Sobchek | Maklii | 1 | 1 |
| Van Epperson | Pop | Alien Man | 1 | 1 |
| Terrell Tilford | Navy Captain Jack Painter | Marab | 1 | 2 |
| Tess Lina | Nurse Maria Baliad | Karyn Archer | 2 | 1 |
| Alex Nevil | Male Patient | Menk Man | 1 | 1 |
| Bruce Gray | CIA Director Roper | Surak | 1 | 1 |
| Connor Trinneer | James Dempsey | Sim | 1 | 1 |
| David Andrews | U.S. Secretary of Defense Errol Coyne | Lorian | 1 | 1 |
| Dayo Ade | ER Orderly | Klingon Weapons Officer | 1 | 1 |
| Hank Harris | Denny Johnson A.K.A Nerdy Man | Jack | 1 | 1 |
| Holmes Osborne | Fred Hanlan | Enolian Official | 1 | 1 |
| Michael Canavan | Retired Navy Admiral Thomas Garscott | Vulcan (Unnamed Adviser 1 ) | 1 | 1 |
| Paul Rae | Steve Hager | Bartender | 1 | 1 |
| Philip Anthony-Rodriguez | Former Marine LCPL Lloyd Jackson | Juan | 1 | 1 |
| Richard Wharton | Squeegee Man | Jossen | 1 | 1 |
| Sam Witwer | S Sgt. Rafael | Sloth #3 (Technician #2) | 1 | 1 |
| Steve Rankin | Sgt. Bill Atlas | Colonel Phillip Green | 1 | 1 |
| Alexandra Lydon | Natalie Dalton | Jhamel | 1 | 1 |
| Christopher Goodman | NCIS Special Agent Michael West | Thalen (Degra's Assistant) | 1 | 1 |
| Geoff Meed | Corporal David Stenson | Dee'Ahn Male | 1 | 1 |
| John Eddins | Steve | Xindi Reptilian (Commander) | 1 | 1 |
| Regi Davis | Commander David Smith | Klingon First Officer | 1 | 1 |
| Robert Mammana | Sheriff Greg Pearson | Engineer | 1 | 1 |
| Stephanie Erb | Rachel Nasry | Receptionist | 1 | 1 |
| Brian Cousins | Jacob Torrance | Alien Lieutenant | 1 | 1 |
| Dan Warner | Federal Marshal | Officer #2 | 1 | 1 |
| Donald Sage MacKay | Navy Commander Kerry Killmartin | Shilat | 1 | 1 |
| Leonard Kelly-Young | George Keogh | Sonsorra | 1 | 1 |
| Nikita Ager | Shannon O'Hara | Rajiin | 1 | 1 |
| Richard Lineback | Chuck Winslow | Kessick | 1 | 1 |
| Tom Schanley | Navy Lieutenant Dean Massey | Greer | 1 | 1 |
| Tom Wright | Warden Sam Kelleher | Ghrath | 1 | 1 |
| Barbara Tarbuck | Grandma | Chancellor Kalev | 1 | 1 |
| D. Elliot Woods | Detective Bradley | Nausicaan Prisoner | 1 | 1 |
| David Pease | Sheriff Lee Chandler | Technician (Na'kuhl Technician #1) | 1 | 1 |
| Dan Desmond | Grumpy Neighbor | Klingon Chancellor (2153) | 1 | 1 |
| Dayna Devon | Attractive Girl | N.D. Engineer (Engineering Command Crewman First Class #1) | 1 | 1 |
| Chase Kim | SRT Sniper | R. Azar #2 | 1 | 1 |
| Sonny Surowiec | C.K. Cord | German Soldier (Nazi SS-sergeant, Brooklyn 1944) | 1 | 1 |
← NCIS × Star Trek: Enterprise
Cast data from TVmaze, licensed CC BY-SA 4.0.