Well If you mean who is the most evil,then that would be Nightmare & Cervantez. If you mean who is the badest characters to play as,It depends on you.For instance,You might be terrible as Setsuka,but great as Voldo,it just depends on the player. ^-^
But personally,Algol is my least favorite ^-^
Berserker Assassin Lizardman
Mikey and Margalo
Soulcalibur happened in 360.
Soulcalibur was created in 1998.
Tira - Soulcalibur - was created in 2005.
Soulcalibur II happened in 2002.
Soulcalibur II was created in 2002.
Soulcalibur IV happened in 360.
Soulcalibur Legends happened in 2007.
Nightmare - Soulcalibur - was created in 1996.
Soulcalibur III happened in 2005.
Soulcalibur V happened in 2012.