Jack "Rabbit" Wheeler, also known as Major Wheeler, is Vert Wheeler's father. He is a member of the U.S. army and it is revealed by the end of The Ultimate Race that Major Wheeler is secretly a member of the Silencerz, and possibly its leader. He is voiced by John Payne.
Jack is shown to be a busy, responsible and secretive individual, as he never told Vert about his real occupation. He deeply cares about his son and feels uncomfortable with Vert driving with the Teku, so much at the point of discouraging him to drive. Jack always told to his son that the duty always comes first, even if he had to choose between the two most important things on his life.
- According to Starlight Runner Entertaint CEO Jeff Gomez on a Reddit AMA , he the son of Jack "Rabbit" Wheeler of the 60s Hot Wheels cartoon thus earning the title Jr.