I want to take a minute to explain my take on the Hound.
Basically he’s Guts’ equivalent to Griffith’s Femto, ie, the ~dark side~ of Guts, made out of swirling negative emotions like rage and fear and hatred etc. It’s likely due to the reality-warping brand on his neck that the Hound is given more form and will than most people’s dark sides, becoming more of a presence to Guts.
We know the Hound isn’t an external evil spirit trying to manipulate Guts or possess him because we see it in Godo’s spirit-repelling cave where Guts is guaranteed to be safe from mean external forces like ghosts.
Like, the nature of the Hound is basically spelled out in its first physical appearance:





This establishes that the Hound is a manifestation of Guts’ “malice” (among other negative emotions, like the fear Guts mentions). Godo says to Guts – “you ran away so that your own malice could burn within you.” That’s the dark flame Guts is referencing up there, which is essentially the Hound.
This also establishes that the Hound is real – it’s not just a metaphor for the audience’s sake, it’s a physical presence that Guts senses. It’s a part of Guts given ghostly form. When he argues with it he’s arguing with himself.
It’s explicitly compared to Femto a few chapters earlier, when the concept is shown to us, before it explicitly appears as an entity.


What Skull Knight means by “or else…” becomes clear on the following page where he finds Rosine’s behelit.

Reminding the audience that there are ways for men to become beasts.
We cut to Guts walking through a forest being taunted by all those asshole spirits, digging into his deep insecurities, locating sites of his self-loathing and using it to fuck with his mind.

They’re essentially voicing his thoughts for him.

Pointing out his inner darkness, similarly to how the spirit that possessed Farnese pointed out that she gets off on torture. They’re not making shit up here, what they say digs deep and fucks with people’s heads because it’s based on truth.
Here they explicitly compare the Hound to Femto.


And finally Guts’ response after they take off:


He’s completely right, and as we can figure out from the ominous shot of the behelit and the fact that this is Guts reaffirming his stupid self destructive revenge crusade, this isn’t the greatest attitude.
He is what he is, and the more he pursues revenge and soaks himself in blood etc the stronger the Hound part of him gets.
And just in case more evidence that the Hound is a part of Guts and not an external force is needed, there’s this:



“This… is my…”
After the armour transforms into the shape of the Hound, rather than Skull Knight’s Skull Knight:

Guts’ armour is Guts getting the power of his dark side that apostles get, without having to sacrifice a loved one first. If he became an apostle his monstrous form would look a lot like the Hound. If Griffith was in Guts’ place, his armour would look a lot like Femto.
Anyway yeah in short the Hound = Guts.











