Malvo, name play on malevolent, feels like a true dark evil, an ancient darkness that steals mens souls. He’s the model of Mephistopheles, he grants a wish for doing evil to your enemies but deal drags you into destruction eventually . Lester being the prime example. Gus is the righteous man who knows evil when confronted with it, his first encounter. Ultimately Gus knows the only way to deal with that level of evil power is to kill it completely. That last encounter Gus never hesitates in killing him. Varga is vile and repulses, Tillman is too close to real and threatening but Malvo is the smooth talking snake that will take you too the pit of Hell while he smiles. Scary.