Angron
The ANGRIESTSecond Angriest son of a bitch in the galaxy. He was so angry that the part of him that was angry exploded from his head, thus making him permanently angry. Being kidnapped by the Emprah didn't help matters so he fucking RAGED at his dad by joining up with Khorne, Warhammer's God of Battle, War and RAAAAAAAAAAGE!
Among his revered exploits include slaughtering the entire population of a planet within a night, killing an entire contingent of Eldar soldiers led by a Farseer in his sleep, leading a gladiator rebellion against their employers and slaughtering every army sent against them. Until a huge one made up about seven came and fucked their shit up. However, one must understand that they had already beaten 25 others non stop and didn't even have tea afterwards. The Emperor saved him from dying here, which was a tremendous hit to his martial pride and soon after he RAAAAAAAAAAGEed furiously against the Emperor, believing him a coward devoid of honor and joined up with KHORNE the aforementioned God of War, Strength, Killing, Bloodshed, Battle, RAAAAAAAAAAGE.
He also slaughtered his way throughout Imperial Space for over a century with 50,000 World Eater Berzerkers and destroyed/maim'dkill'dburn'd/broke the backs of/split open/fucked 70 sectors. However, in a subsequent Imperial offensive, Angron was banished to the warp and his men routed. To be fair, this strike force was comprised of 2 Titan Legions, 4 full Spess Mehreen chapters and over 30 Imperial Guard regiments to do that. And again to be fair, they put up quite a fight against the superior force. And even more impressive was that Angron's force was only comprised of Close Combat heavy infantry, no ranged support, no artillery, more like an angry mob of pissed off supermen than an actual army! Which lends credence to the fact, Khornate Berzerkerz = Awesome.
He is armed with a really huge fucking chainaxe thats taller than him with chainswords for the chainteeth of the chainaxe hes also got a stormbolter but we wouldnt be suprised if that fired chainswords as well. Fittingly enough, it was called 'Godtearer'.
Oh yeah, and he was lobotomized long ago so he finds joy only killing shit. He then replicated this technolog on his fellow legionaries, despite the Empy's warnings. Even in spite of this, however, that swell guy became Angro's 'cool head'. Ironic.
Primarch of the World Eaters and that swell guy.
His son could be Guts from the Berserk manga. Alternatively, he might BE Guts. But such things is to Chaos what Heresy is to the Imperium.