Guts was the inspiration for Artorias, actually. The Plague Babies in Demon's Souls were also based on the Demon Child from Berserk, along with tons of other things that I can't list right now because I'm tired.
Devil May Cry Forums
DreadnoughtDT
Innsmouth
What @DreadnoughtDT said. For example weapon you get for killing Logarius in BB is based on one of Mozgus minions…(though tbh both based on real existing torture devises). Also both berserk and souls heavily inspired by lovecraftian works.
dreadnought_dante
i know a lot of thing in dark souls and bloodborne are inspired from berserk. but this one, i mean both has similarities like greatsword and one hand disable. the special one is guts has an inner demon wolf/dog alike and artorias has a wolf friend.
Innsmouth
btw in DkS3 there is enemy that looks almost exactly like demon dog of Guts (I don't think Sif is reference to Berserk though)