Complex sentence: Depicted as an entity made of flame in most appearances, the cartoon turned him into a living being who roamed space in a gigantic spacecraft and who prefered to let his let his minions do his work for him.
Split into simpler sentences: Depicted as an entity made of flame in most appearances, the cartoon turned him into a living being who roamed space in a gigantic spacecraft. And rather than do his own work himself, he would sit in the background and let his minions do his work for him.