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A first officer (aka executive officer, XO, and number one) is the second-highest ranking officer aboard a starship or space station after the commanding officer. They take command if the commanding officer is unable to. If the first officer is also unable to take command, the second officer is in charge, followed by the third officer, and so on. On ships assigned to the Starfleet Corps of Engineers, such as the USS da Vinci, the first officer is concurrently the leader of the team.

First officers by name

First officers by post

First officers by year

Appendices

References

  1. ↑ ST video game: Bridge Commander
  2. ↑ ST - The Lost Era novel: Well of Souls
  3. ↑ ST - Destiny novel: Gods of Night
  4. ↑ NF novel: Cold Wars
  5. ↑ 5.0 5.1 DSC episode: "The Vulcan Hello"
  6. ↑ 6.0 6.1 6.2 6.3 6.4 VOY episode & novelization: Caretaker
  7. ↑ 7.0 7.1 VOY episode & novelization: Endgame
  8. ↑ 8.0 8.1 ST novel: A Singular Destiny
  9. ↑ 9.0 9.1 TOS movie, novelization & comic adaptation: The Motion Picture
  10. ↑ TNG video game: Away Team
  11. ↑ 11.0 11.1 11.2 DS9 episode & novelization: Emissary
  12. ↑ 12.0 12.1 TOS - Year Five - Experienced in Loss comic: "Issue 24"
  13. ↑ 13.0 13.1 13.2 TNG movie & novelization: Nemesis
  14. ↑ DS9 episode & novelization: What You Leave Behind
  15. ↑ 15.0 15.1 DSC episode: "People of Earth"
  16. ↑ 16.0 16.1 DSC episode: "Unification III"
  17. ↑ DSC episode: "All Is Possible"
  18. ↑ 18.0 18.1 18.2 TNG episode & novelization: Encounter at Farpoint
  19. ↑ 19.0 19.1 19.2 19.3 ENT episode & novelization: Broken Bow
  20. ↑ DSC episode: "Context Is for Kings"
  21. ↑ DSC episode: "Such Sweet Sorrow"
  22. ↑ LD episode: "The New Next Generation"
  23. ↑ LD episode: "Second Contact"
  24. ↑ PIC episode: "The Next Generation"
  25. ↑ PIC episode: "The Last Generation"
  26. ↑ DSC episode: "Anomaly"
  27. ↑ DSC episode: "Choose to Live"
  28. ↑ DSC episode: "Under the Twin Moons"
  29. ↑ SA episode: "Kids These Days"

External link