debt collector (chainsaw man)
The nameless Debt Collector is a minor but pivotal antagonist from Chainsaw Man. He is a member of the Yakuza who uses Denji as a devil hunter in order to offload his debt due to his dead father unable to pay it, and is a scummy old man who sold his soul to the devil and betrayed Denji just to get what he wants.
He is the grandfather of Katana Man.