Jailkeeper

You are a Jailkeeper.
Your alignment is Town Protective.
You are the town's jailkeeper locking up criminals when prosecuted. Now however you'll be using your cell to keep the town safe by locking them up. It's for their own good.
Every night you may target a player and lock them in your jail cell.
This roleblocks and protects them.
You win with the Town
You win with Survivors
You must kill the Mafia
You must kill Arsonists
You must kill Witches
You must kill Serial Killers
You must kill Stalkers
You may spare anyone else