Other known Scorpio
Dawn - Pokemon
Juvia Lockser - Fairy Tail
Sebastian Michaelis - Black Butler
Roronoa Zoro - One Piece
Miho Nishizumi - Girls Und Panzer
Sailor Venus - Sailor Moon
Seto Kaiba - Yu-Gi-Oh
Kenpachi Zaraki - Bleach
Akisame Kouetsuji - Kenichi the Mightiest Disciple
Maya Jingu - Burn-Up Excess
Nunnally Lamperouge - Code Geass
Retsuko - Aggretsuko
Melissa Mao - Full Metal Panic
Meiko - Vocaloid
Krillin - Dragonballz
Kagura - Gintama
Mega Drive - Sega Hard Girls
Kaede Nagase - Negima
Tomoya Okazaki - Clannad
Riko Izayoi - Maho Tsukai Precure

My first choice was Seto Kaiba but Char Aznable is more fitting. For Scorpio life is a game of chess, who are constantly plotting several steps ahead in order to orchestrate an eventual checkmate.
The masked Red Comet has had five different names been on the heroes and villains side as well as create his own faction, he always manipulated every side he was on, the fact he's a newtype as well gives him the extra ability of clairvoyance and was only stopped by someone on his level.