First officer

From Memory Alpha, the free Star Trek reference.

Aboard a starship the first officer was the second-in-command, just below the captain. On a Federation starship, the first officer had the following functions:

• the principal adviser to the captain
• implementor of the captain's orders
• preparation and issue of duty rosters (VOY: "The Gift")
• commander of the vessel in the event of the captain's absence, incapacitation or death

In Starfleet the position was usually held by an officer with the rank of commander or lieutenant commander. The position was also referred to as executive officer, or XO

In Starfleet's early period of existence, the first officer would accompany the captain on landing parties, depending on the situation. By the 24th century, however, it was the first officer who usually led away teams while the captain remained on the ship.

Some noted first officers in Starfleet history were:

• Subcommander/Commander T'Pol of Enterprise (NX-01)
• Lieutenant Commander (later Commander, and later Captain) Spock of the USS Enterprise (NCC-1701) and USS Enterprise (NCC-1701-A)
• Commander William T. Riker of the USS Enterprise (NCC-1701-D) and the USS Enterprise (NCC-1701-E)
• Major Kira Nerys of Deep Space 9
• Lieutenant Commander Worf of the USS Defiant (NX-74205)
• Lieutenant Commander Chakotay of the USS Voyager

First officers
Subcmdr./Cmdr. T'Pol	Cmdr./Cpt Spock	Cmdr. William T. Riker	Major/Colonel Kira Nerys	Lt. Cmdr. Worf	Lt. Cmdr. Chakotay

Contents 1 List of first officers 1.1 Earth Starfleet 1.2 Federation 1.3 Klingon Empire 1.4 Other 1.5 Mirror universe 1.6 Alternate timelines 1.7 Apocrypha 1.8 External link

[edit] List of first officers

[edit] Earth Starfleet

• Subcommander/Commander T'Pol
  • Enterprise (NX-01) (2151-2161)

[edit] Federation

• Commander Brink
  • USS Brattain (2367)

• Lieutenant Maxwell Burke
  • USS Equinox (2370-2376)

• Lieutenant Commander Cavit
  • USS Voyager (2371)

• Lieutenant Commander Chakotay
  • USS Voyager (2371-2378)

• Commander Pavel Chekov
  • USS Reliant (2285)

• Lieutenant Commander Data
  • USS Enterprise (NCC-1701-D) (2369)

• Commander Willard Decker
  • USS Enterprise (NCC-1701) (2272)

• Lieutenant Ducane
  • USS Relativity (29th century)

• Commander Flaherty
  • USS Aries (2365)

• Commander Steve Gerber
  • USS Yamato (2365)

• Lieutenant Commander Christopher Hobson
  • USS Sutherland (2368)

• Commander Steven Mullen
  • USS Essex (2167)

• Lieutenant Tom Nellis
  • Antares (2266)

• Lieutenant "Number One"
  • USS Enterprise (NCC-1701) (2254)

• Major/Colonel Kira Nerys (Bajoran Militia liaison officer)
  • Deep Space 9 (2369-2375)

• Lieutenant Commander/Commander William Riker
  • USS Hood (NCC-42296) (2361-2364)
  • USS Enterprise (NCC-1701-D) (2364-2371)
  • USS Enterprise (NCC-1701-E) (2372-2379)

• Matthew Ryan
  • ECS Fortunate (2151)

• Lieutenant Commander Shelby
  • USS Enterprise (NCC-1701-D) (2367)

• Lieutenant Commander Benjamin Sisko
  • USS Okinawa
  • USS Saratoga (NCC-31911) (2367)

• Snodgrass
  • SS Mariposa (2123)

• Lieutenant Commander/Commander/Captain Spock
  • USS Enterprise (NCC-1701) (2266-2270)
  • USS Enterprise (NCC-1701-A) (2286-2293)

• Lieutenant Commander Worf
  • USS Defiant (NX-74205) (2372-2375)
  • USS Defiant (NCC-75633) (2375)~
  • IKS Rotarran (2373)

[edit] Klingon Empire

• Korax
  • IKS Gr'oth (2267-2269)

• Commander Kaz
  • IKS Klothos (2269)

• Hon'Tihl
  • IKS Toh'Kaht (2369)

• Worf
  • IKS Rotarran (2373)

[edit] Other

• Ferengi - Kazago
  • Bok's Marauder (2364)

• Tellarite - Gaavrin
  • Tezra (early 22nd century)

• Tygarian - Romah Doek
  • Nanut

[edit] Mirror universe

• Commander Jonathan Archer
  • ISS Enterprise (2155)

• Lieutenant Commander T'Pol
  • USS Defiant (NCC-1764) (2155)

• Commander Spock
  • ISS Enterprise (2267)

[edit] Alternate timelines

• Commander Thelin
  • USS Enterprise (NCC-1701) (2269)

• Commander Worf
  • USS Enterprise (NCC-1701-D) (2367-2370)

[edit] Apocrypha

• Commander Worf
  • USS Enterprise (NCC-1701-E) (2380)

• Commander Sonya Gomez
  • USS Da Vinci (Star Trek: Starfleet Corps of Engineers)

• Commander Elias Vaughn
  • Deep Space 9 (Star Trek: Deep Space Nine (Pocket))

• Commander Christine Vale
  • USS Titan (Star Trek: Titan)

• Commander Jon Cooper
  • Starbase 47 (Star Trek: Vanguard)

[edit] External link

• First officer at Memory Beta, the wiki for licensed Star Trek works