Daniel Santos

Daniel Santos was a Hereditary werewolf, being born a werewolf instead of bitten. He was former member of the North American Pack but left after Clayton killed his brother, Stephen Santos, while protecting Jeremy. He led an attack against the pack, orchestrated by Malcolm Danvers, with the promise from Danvers that Elena will be his and he can be the Alpha.

His goals included hurting Clayton, who he had a deep seeded hatred for, and claiming Elena as a mate so they could produce a brand-new breed of werewolves that inherited the gene from both parents. During the Mutt uprising he attempted to get Elena to side with him and when she declined he plotted to destroy everything she cares about and turn her against Clay and the Pack.

Santos turned Victor Olsen, a child predator who Elena testified against and sent to prison as a way of torturing her. He attempts to kill Elena's boyfriend, Phillip but is stopped by Clay. During the attack on Phillip Clay is drugged and taken by Santos and Victor. He is tortured and beaten by Santos while he is being help. Clay was eventually found by the Pack.

Santos (under the direction of Malcolm) decided to conduct a full assault of Stonehaven with the help of several Mutts. Karl Marsten turned on him, the pack surrounded him and Elena killed him.