Bulkhead is a Transformer soldier in the heroic Autobot army. He is generally a green Autobot.2004 cartoon (Energon) - Bulkhead was a veteran soldier and aerial fighter. He transforms into a helicopter, and utilizes a drone that provides him with armor to fight with.2007 cartoon (Animated) - Bulkhead was a member of the Autobot cadets who came to Earth. Originally a farmer, he became a cadet and an engineer (despite being a bit clumsy and dim usually). He transforms into a SWAT truck.2010 cartoon (Prime) - Bulkhead was a member of the Wreckers, a faction of brutal Autobots undertaking special missions. He serves as guardian to the human Miko Nakadai. He is very large and clumsy, but is a gentle and heroic character. He transforms into an off-road vehicle.