Immunity

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

Permanent

 * The Mastermind is immune to death at night.
 * The Madman is immune to death at night. (Aftermath Only)
 * The Noble is immune to death at night.
 * The Possessor is immune to death at night.

Temporary

 * The Alchemist can grant a player immunity to death through the use of it's  Crimson Potion ability
 * The King can prevent the death of itself of another player through it's  Guard ability.
 * The Knight can sacrifice itself to prevent the death of another player using the  Sacrifice ability.
 * The Physician can prevent someone's death via the  Heal ability.
 * The Priest is immune to death once
 * The Priest can make a player immune to death for one night using their Bind Soul ability.
 * The Soulcatcher can make a player immune to death for one night via Bind Soul.
 * The Ritualist can make a Cult member immune to death, but only from The Paladin

Permanent

 * The Paladin is immune to occupation
 * The Possessor is immune to occupation
 * The Prince is immune to occupation
 * The King is immune to occupation

Temporary

 * The Enforcer can give The Assassin immunity to Occupation using Frenzy
 * The Ritualist can make the entire Cult immune to Occupation using Brotherhood

Permanent
1If the King is a promoted Noble and the other Noble is converted, the King will convert too, however the King is not the target of the conversion
 * The Alchemist is immune to Conversion
 * All Unseen classes are immune to Conversion
 * All Cult members are immune to Conversion
 * The Fool is immune to Conversion
 * The King is immune to Conversion no matter the Faction 1
 * The Paladin is immune to Conversion
 * The Possessor is immune to Conversion
 * The Prince is immune to Conversion
 * The Reaper is immune to Conversion
 * The Sheriff is immune to Conversion
 * Royals and Unique Classes are immune to Sheriff Conversion

Temporary

 * The Paladin can make a player immune to Cult Conversion

Permanent

 * The Herbalist is immune to Poison
 * The Physician is immune to Poison

Temporary

 * The Court Wizard makes a player immune to all day abilities through the use of Magical Barrier
 * The Court Wizard makes a player immune to all visits through the use of Ice Ward
 * For the first 3 nights The Mastermind is immune to The Sheriff
 * The Mercenary can make their target immune to all visits by using Stand Guard
 * The Sage can make their target immune to all visits (bar The Assassin) via Wall Of Fire
 * The Sellsword can make their target immune to all visits by using Stonewall