Redmask became the Mortal Sword of the K'Chain Che'Malle. His given name was not Redmask, that name was derived from the red-scaled mask he wore. Made from the hide of a K'Chain Che'Malle Matron throat. He later returned to the Awl to lead them in an uprising against the Letherii. He was a master of the traditional Awl weapons: the Awl'dan cadaran whip and a rygtha crescent axe.
His personal guardians were two K'Chain Che'Malle, Sag'Churok and Gunth Mach. During the final battle against the Letherii, Sag'Churok and Gunth Mach turned on Redmask and killed him, presumably for failing in the war with the Letherii. When his body was recovered after the battle and the red mask was removed, it was revealed that Redmask had a Letherii and not an Awl face. His true identity was never revealed.