Plague Knight is one of eight Knights of "The Order of No Quarter" who serves the Enchantress. He is the boss of The Explodatorium.
Plague Knight is the protagonist of the Plague of Shadows expansion.
Plague Knight has a somewhat reckless personality and notably treats several of his allies with contempt or indifference. With the exception of Tinker Knight, he treats all of the Order of No Quarter with disrespect, often gleefully attacking them and entirely unapologetic at the Battle Royale.
He is insecure about his lack of strength and power, believing that he needs the Serum Supernus to become powerful enough for Mona to love him.