Trombus

Trombus is a planet home to the Trombusans people known for being technologically advanced weapons manufacturers.

History
The Master Jailer was guard at Fort Rozz hailed from the planet Trombus. He masqueraded as a National City police detective Carl Draper, while hunting down and killing the Fort Rozz Escapees who were disguising themselves as Earthlings. He made use of advanced alien technology, including an armored suit that made him a match for Supergirl physically.

Known residents

 * Master Jailer