Radley, known as Ramon in the Japanese version and Yu-Gi-Oh! 5D's World Championship 2011: Over the Nexus, is an inhabitant of Crash Town.
Radley is the leader of one of the two gangs, the Radley Bunch, that rule the harsh town through Duels. The other gang, the Malcolm Crew, belongs to Malcolm. According to another resident, Barbara, the two of them came to form their groups as a violent way of forcing people to work in the excavation of the "Dyne" mineral used in the construction of Duel Runners. One member from Radley's group is Kalin Kessler, who Radley himself calls "Sensei".
After Yusei Fudo's Duel with Kalin concludes, Radley is confronted by Lawton, who challenges him. Lawton defeats Radley in one turn with "Gatling Ogre", and as per the rules of Crash Town, Radley is sent to the Dyne mines. After Lawton and Barbara were arrested by Trudge, it is unknown if he is sent to the Facility or allowed to stay at Satisfaction Town. It is very most likely that he was sent to the Facility.
Most of the gang members from his group wear black capes.
Radley may be based on John Baxter from A Fistful of Dollars. His name in the Japanese version is the same as that of Baxter's enemy, Ramon Rojo.
In Yu-Gi-Oh! 5D's World Championship 2011: Over the Nexus, Radley uses a "Crystal Beast" Deck called "Treasure Digger".