Actually, Brahm did write one. It was the "Cursed Hillman" Hired sword. Sadly, I don't see it on his site.
Brahm and I also did a "masters of horror" warband (basically old Universal Movie Monsters), and had two types of werewolves.
Werewolf Hero: M6, WS3, BS3, S4, T3, W2, I2, A2, Ld7. He didn't cause fear, but in theory, he probably should've. The cost for the hero was 65gc.
The other werewolf in the warband were the Bitten Henchmen.
0-3 THE BITTEN
40 gold crowns to hire
Slaves to the disease that courses through their veins, the Bitten serve their dark masters in both their human and bestial forms.
M WS BS S T W I A Ld
4 2 2 4 3 1 4 1 6
Weapons/Armor: The Bitten may be armed from the Bitten Equipment List (Dagger, Sword, Axe, Hammer, etc.)
Transform: Roll a D6 each turn and consult the following. Once transformed, the Bitten cast off all equipment (save for a dagger) and suffer no penalties for fighting unarmed.
1-Madness: your Bitten suffers from Stupidity this turn. If Transformed, they revert to human form.
2 to 5-Act as normal
6-Transformed: your Bitten gains Frenzy and Sprint. This lasts until a 1 is rolled. Transformed do not roll when in combat.