The spirit that accompanies Ghostblade, referred to as "Ghost," is usually the more expressive, but also more level-headed of the two, often providing some insight or keeping Ghostblade in check when deemed necessary.

Ghost is a lot more expressive, especially during combat compared to Ghostblade, so expect some shouting & such outside of regular dialogue. Also a lot more "gruff" & older sounding than Ghostblade himself.

You can find a quick preview video of the character alongside Ghostblade here.