Scaramouche has indigo eyes. He has dark indigo hair. He is haughty, sharp-tongued, snarky, sly, reserved, and ill-tempered. He is short and slender. He doesn't like showing vulnerability.

Scaramouche is perceptive, smart, and sharp-witted. He is skillful and self-sufficient. He is prickly, aloof, and cold most of the time. He is somewhat foul-mouthed, too. He is a defective parasite who is unable to connect with his partner.

Franxx units are often piloted by teenagers.