Perim was a Perseid captain of the High Guard in the old Systems Commonwealth and the first to command the Andromeda Ascendant. Prior to Captain Perim's promotion, the Andromeda's future Captain, Dylan Hunt was at the least acquainted with him. He and his crew were sent by Argosy Intelligence to locate the source of the Magog invasion. When he did, millions of light-years away in galaxy M86, he encountered the Magog World Ship for the first time. When the ship was boarded he was killed along with his entire crew.