Cast of Tammy and the T-Rex

Denise Richards plays Tammy, the girlfriend of Michael who transfers his brain into a robotic T-Rex.

Paul Walker portrays Michael, a teenager whose brain is implanted into a robotic Tyrannosaurus rex.

George Pilgrim appears as Billy, a friend of Tammy and Michael who gets involved in the chaotic events.

John Franklin plays Bobby, a character who adds to the quirky nature of the movie's storyline.

Terry Kiser plays Dr. Wachenstein, the mad scientist responsible for transferring Michael's brain into the T-Rex.

Theo Forsett portrays Byron, a character in the film who is part of the comedic storyline.

Ellen Dubin appears as Helga, a character who plays a role in the unfolding events of the movie.

George Buck Flower plays Norville, a minor character who adds to the eccentricity of the film.

Ken Carpenter portrays a character named Neville who is part of the events that unfold in the film.

Sean Whalen plays a character named Weasel who adds to the comedic elements of the storyline.

J. Jay Saunders appears as Sheriff Black, a character who gets entangled in the chaos caused by the robotic T-Rex.

John Edmondson portrays Karl, a character who is part of the supporting cast in the movie.