eigen-space

Pit - Kid Icarus
Raiden - Metal Gear
Zero - Mega Man
Cloud Strife - Final Fantasy VII
Sephiroth - Final Fantasy VII
Lightning - Final Fantasy XIII
Sora - Kingdom Hearts
Ryu Hayabusa - Ninja Gaiden
Geralt of Rivia - The Witcher
Nightmare - Soul Calibur
Revan - Star Wars
Haohmaru - Samurai Showdown
Frog - Chrono Trigger
The Lich King - Warcraft
Sol Badguy - Guilty Gear

Nice to see you back. Anyway...

Auron (Final Fantasy X)

Go home, Cloud. You're boring.

Altaïr (Assassin's Creed)

Although I guess technically you can have the Sword of Altaïr represented by the main character of any game that allows you to unlock it.

Master Aqua (Kingdom Hearts Birth by Sleep)

Please ignore the fact that technically, in the way they're used, Keyblades function more like clubs than blades. While you're at it, also please ignore how KH3 turns Aqua into an ineffectual, inessential goob. Actually, ignore 93.7% of any story choices made in that game.

I'm assuming you're wanting to keep it non-nintendo? If not, I would add Shulk from Xenoblade Chronicles or get some Fire Emblem characters.

Other than that though... Hopefully no repeats from everyone else...

The Hunter (Bloodborne)

Zagreus (Hades) 

Yu Narukami (Persona 4) 

2B (Nier: Automata)

Zidane (FF9) 

Laharl (Disgaea) 

Travis Touchdown (No more Heroes)

Jin (Ghost of Tsushima) 

Goro Majima (Yakuza)