Here is the full list of all 15 Werewolves Within trophies - there are 11 bronze and 4 silver.
Win as each role once.
As a Werewolf, successfully eliminate the Saint
Play as each role once.
As a Werewolf, be on the winning team
As Townsfolk, become Ringleader
As Villager, nominate a Ringleader
As Saint, win the game without getting any votes for yourself
As Saint, be on the winning team
As Deviant, win a game
As Deviant, have all players unanimously vote for you
As Townsfolk, successfully eliminate a Werewolf
As Townsfolk, be on a winning Townsfolk team
Perform every Emote
As a Werewolf, successfully use the Scent ability
As a Werewolf, become Ringleader