John Thomas
John C. Thomas is an American screenwriter based in California. With his brother Jim Thomas, he wrote and/or was substantially involved with the screenplays of numerous films, including Predator (1987), Predator 2 (1990), Executive Decision (1996), Wild Wild West (1999), and Behind Enemy Lines (2001), which spawned a franchise. Description above from the Wiki John Thomas (screenwriter), licensed under CC-BY-SA, full list of contributors on Wikipedia.
Cast
Crew

Executive Decision
Producer, Writer

Mission to Mars
Story, Screenplay

Prey
Executive Producer, Characters

Aliens vs Predator: Requiem
Characters

Predator: Badlands
Characters, Executive Producer

Predator 2
Writer, Characters

Behind Enemy Lines
Story

Two-Fisted Tales
Writer

Predator
Writer

AVP: Alien vs. Predator
Characters

The Rescue
Writer

Asuran
Original Story

Wild Wild West
Story

Predators
Characters

Tales from the Crypt: The Robert Zemeckis Collection
Writer

Predator: Killer of Killers
Characters, Executive Producer

The Predator
Characters

