Ultra Magnus generally appeared as a chief lieutenant to the leader of what fictional group of sentient robots?
Optimus Prime Optimus Prime is a fictional character from the "Transformers" franchise. He is the leader of the Autobots. A fictional group of sentient robots that can transform into other forms (e.g: cars and other objects) He is the most iconic of the Transformers, being frequently featured in Popular Culture.
Ginrai Ginrai, occasionally spelled Jinrai and also known as both Super Ginrai and God Ginrai, and later rebuilt as Victory Leo, is the protagonist from the animated series "" and its toy line, one of the Transformers series exclusive to Japan. He was called Apex Prime in some fandubbed versions of the animated series.