Famous Werewolves in D&D?

[Wonko the Sane]

There's also Bidderdoo Harpell from the Forgotten Realms, a member of the eccentric Harpell family of wizards that reside in Longsaddle. Several members of the clan aided in the defense of Mithral Hall against an incursion of drow from Menzoberranzan.

 

[IvanDragonov]

Ravenloft also has Ivan Dragonov, a ranger who fought so hard against Werewolves, and eventually became a loup-garou.

Ivan Dragonov was so not a ranger. He was a straight up fighter, though he was a expert tracker in no way was he a ranger. Just a piece of info.