Mark Collie

Modern-day Texas Ranger, Cordell Walker's independent crime-solving methods have their roots in the rugged traditions of the Old West. Walker's closest friend is former Ranger, C.D. Parker, who retired after a knee injury, and now owns "C.D.'s," a Country/Western saloon/restaurant. Rookie Ranger, James "Jimmy" Trivette is an ex-football player who bases his crime-solving methods on reason and uses computers and cellular phones. Alex Cahill is the Assistant DA who shares a mutual attraction with Walker, but often disagrees with his unorthodox approach to law enforcement.

Harmon "Harm" Rabb Jr. is a former pilot turned lawyer working for the military's JAG (Judge Advocate General) division, the elite legal wing of officers that prosecutes and defends those accused of military-related crimes. He works closely with Lt. Col. Sarah Mackenzie, and together they do what needs to be done to find the truth.

When an EPA representative is murdered in a small Appalachian community, EPA undercover agent Jack Taggart is sent in—posing as a handyman working with a Christian relief agency—to determine what happened.

When undercover FBI agent Frank Castle's wife and son are slaughtered, he becomes 'the Punisher' -- a ruthless vigilante willing to go to any length to avenge his family.