Bulkhead (Transformers)
Bulkhead is the name of three fictional characters from the Transformers series. All incarnations of Bulkhead are Autobots and are green in color. He was introduced in Transformers: Energon and later redebuted in Transformers: Animated as a completely new character. The Animated Bulkhead became so popular that he was adapted to reappear in Transformers: Prime. Whereas he was a minor character in Energon, the Animated/Prime Bulkhead appears as a main character in both series.
Read more about Bulkhead (Transformers): Transformers: Energon, Transformers Animated, Transformers: Prime