Blackwood packs is one of the most fear packs in the world because not only one is considered alpha.. they're THREE. They're all strong and dangerous.

Hendrix Blackwood - The eldest of the three. Cold, Stoic, and ruthless. Women throw themselves at him even if he always had that Stoic face. (37)

Zace Blackwood- The second of the three. If Hendrix is the head, Zace is the shadow. The weapon of Blackwood. He's enigmatic and always serious just like Hendrix that's why he's called the 'thunder'(35)

Jace Blackwood- the youngest. Playful but do not mistaken his smile for kindness. He's a snake.(32)