Leatherhide was an Autobot scientist. During the war, he and Proxima researched Point One Percenters and what made them special before their funding was cut by Autobot High Command. The Inexorable March He later became infamous for his bizarre experiments involving mechanimals. Although his fellow Builders dismissed him as a crank, his experiments became too much for them to ignore, and he subsequently fled into the Toxic Sludge Swamps to continue his research.