William Cooper

William Cooper (ウィリアム・クーパー) was the step-brother of the late Jett and a minor character in Darkness Unbreakable.

A police officer in the Nova region, William was idolized by Jett and served as his role model. One day, he was enjoying a meal with Jett when he responded to a call. While investigating with his partner, William was killed by the Shadow Reavers in cold blood.

His death influenced Jett to join Shadow's group in their campaign against the Shadow Reavers.