Immunity

Immunity simply means that a class is unaffected by a certain type of action.

Death Immunity

The Alchemist can give herself immunity to death for a night by using the Stoneskin Potion ability.
The Inquisitor is immune to one attack, until they achieve their victory condition.
The King can give themself immunity to death for a night by using the Guards ability.
The Fool can make themselves immune to all attacks for a night by using Hide.
The Scorned is immune to death at night, until their victory condition is met.
Pretender is immune to death at night, until their first victory condition which is becoming king is met.

The Hunter can give himself immunity to death for a night and kill all of his attackers by using the Bear Companion ability.
The Knight can give another player immunity to death for a night, kill all of that player's attackers, and sacrifice himself by using the Defend ability.
The Mercenary can grant protection from one attack with her Shield.

The Alchemist can prevent another player's death by using the Crimson Potion ability.
The Physician can prevent another player's death by using the Heal ability.
The Reaper can prevent their own death and consume a soul by using the Consume Soul ability.

The Butler and The Servant are immune to most forms of occupation and target changing.
The Drunk and The Alcoholic are immune to most forms of occupation and target changing.
The Fool is immune to most forms of occupation and target changing.
The Hunter and The Poacher are immune to most forms of occupation and target changing.
The Invoker is immune to most forms of occupation and target changing.
The King is immune to most forms of occupation and target changing.
The Mastermind is immune to most forms of occupation and target changing.
The Possessor is immune to most forms of occupation and target changing.
The Prince is immune to occupation and target changing.
The Scorned is immune to most forms of occupation and target changing.
The Sorcerer is immune to most forms of occupation and target changing.
Any of the above mentioned that can become The Assassin or The Cult Leader will keep their immunity to occupation and target changing after converting.

After a player has been occupied a total of 3 times, they will become immune to occupation for the rest of the game. (Being imprisoned by The Prince 3 times can cause this and prevent further imprisonment)

The Enforcer can give The Assassin immunity to occupation and target changing for a night by using Frenzy.
The Court Wizard can a Support class immunity to occupation and target changing for a night by using Empower.

The Hunter can give himself immunity to conversion for a night by using Bear Companion. This will not kill the player attempting to convert them.
The Paladin can give another player and themselves immunity to conversion for a night by using Smite. This will also kill The Cult Leader if they attempt to convert that player.
The Court Wizard can give another player immunity to conversion for a night by using Clear Mind.

The Alchemist is immune to bleeding and nightshade poison.
The Physician and The Herbalist are immune to bleeding and nightshade poison.
The Sorcerer is immune to bleeding and nightshade poison.
Anyone who had The Physician using Inoculation on them is immune to bleeding and nightshade poison.

The Prince can make their target immune to visits by using the Imprison ability.