Roxanne was Claymore No. 1 of her generation, and one of the eight most powerful No. 1 warriors of all time. During her lifetime, she became known as "Roxanne of Love and Hate" Roxanne has pale, wavy hair pulled tight into two pigtails with straight bangs swept to the left. She has silver eyes, prominent lashes, and a notable beauty mark below her right eye. She wears the standard warrior uniform and what appears to be dark red lipstick. Roxanne appears to be scheming, sadistic, and manipulative, displaying sociopathic tendencies similar to Ophelia. Roxanne would also befriend warriors she admired and take advantage of those connections to learn their skills. Roxanne herself would go into Extreme Methods to successfully copy these skills for herself, She allowed her own eye to be gauged out,thereby blinding herself the same way the then Number 9 Neideen in order to master her sensory and sword skills, This was also true when she soon became infatuated by the then number 1 Cassandra, where she stalked and followed her around for months for the sole objective of seeing her battle and copy her secret fighting style.

However, as she became more powerful, she would come to hate both her imitated abilities and their inventors, deeming them "ugly." Coincidentally, each of her "friends" would mysteriously die in an Awakened Being hunt soon after she mastered their techniques, but Roxanne never expressed any sadness. It is implied that she was directly involved in their deaths, evidenced by the timings, her apathy, and the nature of the deaths of her former "Friends". Her resulting reputation seems to be the reason she was nicknamed "Roxanne of Love and Hate." Roxanne is a very capable warrior and is shown to be skilled enough to emerge victorious seemingly effortlessly against the twins utilizing Soul Link, although it must be noted that the two are just trainees.[3]

Roxanne is exceptionally gifted in Yoki Synchronization, allowing her to copy and master other warriors' techniques with ease.