Colonel Isaacs

Colonel Jack Isaacs is the primary antagonist in The Outsiders: This is War. He is the father of the deceased Dennis Isaacs, who commited suicide after Silva drove his (Dennis) fiance to death. As a result Colonel Isaacs hold a grudge against Silva and would do anything to get even.

Personality
Unlike Reid, Isaacs is purely motivated by revenge. He is intelligent and doesn't give up easily.