Mortal Kombat Character: Rain
Level Of Brutality: 3.9

Sure, Rain has some of the series' most brutal fatalities (he can slice his opponents into pieces with a blade made of water), but the guy is just brutal in general. He enslaves his own realm, Edenia, when he becomes its new protector, attempts to rule the other realms (beginning with Earthrealm) and drowns Shao Kahn in his own blood. Yikes.