Alyx D. Crowley (アリクスヂクロウリ Ariksu Di Kurouri?) is a Marine Commander that is obsessed with the capture and incarceration of Di Roy. She comes from a family renowned for their service as Marines and is considered to be a prodigy that hasn't appeared in several generations. She used to study in the same class with Di Roy in the academy and might foster some unrequited feelings for him.