Commander

Commander is a military rank used in Earth Starfleet and Federation Starfleet, superior to lieutenant and lieutenant commander and subordinate to captain. A commander may be a department head, aide-de-camp or executive officer on a large vessel or starbase, or may be commanding officer or first officer of a smaller vessel.
Following naval tradition, the commanding officer of a vessel is addressed as "captain" while on their own vessel, regardless of rank. ()
The rank is equivalent to the Marines rank of lieutenant colonel, and the Romulan and pre-Federation Vulcan rank of subcommander (they used "commander" to mean their equivalent of the Starfleet rank captain).
== Insignia ==
=== Starfleet ===
===Klingon Navy===
===Romulan Star Navy===
Image:Romulan Star Navy - SCdr.PNG
==Current ==
* Angela D'Amico
* Wilma Elbrun
* Rey Drek
* Juliet James
* Jennifer Morgan
* David Quinn
* S'helar
* Teshurr
* Dorian Vatto