What are the dependencies of the Werewolf games expansions?
I found almost all the answers on boardgamegeek.com. That page is very handy for this purpose.


The Werewolves of Millers Hollow


The Werewolves of Millers Hollow - Original Game
The Village - Expansion which also contains Original Game.
New Moon - Requires Original Game (or The Village)
Characters - Requires Original Game (or The Village)
Special edition - It is standalone. Found no more info.
The Werewolves of Miller's Hollow: The Pact - Contains: Original Game + The Village + New Moon + Characters (so full game with all expansions)

Ultimate Werewolf


"Ultimate Werewolf" / "Werewolf" - Original Game
Ultimate Werewolf: Whitebox edition - Reimplements Original Game
Ultimate Werewolf: Ultimate edition - Reimplements Whitebox Edition
Ultimate Werewolf: Deluxe edition - Reimplements Ultimate Edition
Classic Movie Monsters - Requires Original Game (or one of the reimplementations)
Night Terrors - Requires Original Game (or one of the reimplementations)
Artifacts - Requires Original Game (or one of the reimplementations)
Urban Legends - Requires Original Game (or one of the reimplementations)
Wolfpack - Requires Original Game (or one of the reimplementations)
Ultimate Werewolf: Deluxe Edition For Kickstarter - Contains: Deluxe Edition +  Classic Movie Monsters + Night Terrors + Urban Legends + Wolfpack (NOT Artifacts)