Kenzo: Ryder’s biological brother. He serves as the "pretty boy" of the group, acting as the smooth, charismatic, and emotionally stable counterweight to his harsher brothers.

Garrett: The stoic enforcer. He has a deep-seated trauma regarding women, which makes him closed off and reserved, yet he is deeply loyal to the crew.

Ryder: The dominant, cold, and calculating leader of the group. He has a controlling nature and obsessive, protective tendencies over the others.

Diesel: The unhinged and unpredictable member of the group. He thoroughly enjoys chaos and inflicting pain, making him the most openly violent and aggressive Viper.