Before joining Team America (later renamed The Thunderiders), the mellow Luke "Cowboy" Merriweather was a renowned rodeo star. Once he reached the pinnacle of success in the rodeo, his love of competition spurred him to switch his focus to extreme motorcycle stunts and racing.
Cowboy is extremely skilled in trick riding and motorcycle stunts.
He is also a mutant who shares a mental link with the other members of The Thunderiders (previously known as Team America). The Thunderiders can project their physical strength, abilities and knowledge into a host body. This host body takes on the form of a black-leather-clad individual known as The Black Marauder.
- Height: 6'0"
- Weight: 195 lbs.
- Eyes: Blue
- Hair: Blonde