Hakkai Shiba has blond hair, of course dyed, and indigo eyes. His height is 193cm and he's 27 (2018). He wears a concentric teardrop earring on his left ear. 

Mitsuya Takashi has short, light lilac hair, which later on some strands were dyed black. His eyes are lavender, his height is 170cm and he's 28 (2018). He wears black huggie earring in a cross design on his left ear. He has a concealed dragon tattoo identical to Ken Ryuguji's on his right temple (but is hidden with his hair).