Centurion

A Centurion is a title usually attributed to an active officer of a military unit in service to a greater power, be it a nation, a planet or a terrestrial or interstellar empire. On Earth, a centurion was a professional officer of the Roman army after the Marian reforms of 107 BC. Most centurions commanded 60 to 80 men despite the commonly assumed 100, but senior centurions commanded cohorts, or took senior staff roles in their legion.

In the continuity of the Star Trek film and television franchise, members of of the Romulan Star Empire are often referred to by the title centurion. These are non-commissioned officers who generally answer to a subcommander.

On the original 1978 TV series Battlestar Galactica, the robot warriors of the Cylon empire were referred to as Cylon Centurions.