Regular cast characters by rank

Real world article
(written from a production point of view)

This page is a list of characters played by the regular cast from the Star Trek series and films.

By first appearance

Characters listed by rank or title, at first appearance (or earliest known appearance holding a rank or title)

Civilians

Starfleet

Captain
Commander
Picard later remembered in "The Best of Both Worlds" that Riker was a lieutenant commander during this episode, despite wearing commander insignia.
Lieutenant commander
Lieutenant
Tuvok was mistakenly assigned lieutenant commander insignia, but the mistake was corrected during VOY Season 1.
Lieutenant junior grade
Paris was mistakenly assigned lieutenant insignia, but the mistake was corrected during VOY Season 1.
Ensign
Chief petty officer
Non-commissioned officer

Bajoran Militia

Major
Non-commissioned officer

Vulcan High Command

Sub-Commander

By latest appearance or highest rank

Starfleet

Admiral
Rear admiral
Commodore
Captain
Commander
Lieutenant Commander
Lieutenant
Lieutenant junior grade
Ensign
SCPO
* = grade unknown

Bajoran

Colonel
Non-commissioned officer

Klingon

Chancellor

In alternate realities

Civilians
Seven was disguised as a Starfleet officer in "Relativity".

Starfleet

Admiral
Vice Admiral
Rear Admiral
Captain
The mirror Archer achieved the rank of captain twice, both times he gave himself a field promotion during acts of mutiny.
Picard never reached higher rank in alternate realities, but he was portrayed as an admiral in Barash's holograms.
Commander
Lieutenant Commander
Lieutenant
Ensign
SCPO
* = grade unknown

Klingon/Cardassian Alliance

Regent
Intendant
Non-commissioned officer

MACO

Major
Sergeant

Terran Rebellion

Captain
Member