Primacron
Primacron was an ancient scientist, who devoted himself to the creation of powerful robotic weapons. His crowning achievement was Unicron. However, Unicron rebelled, using his vast power to nearly kill Primacron. Meanwhile, Primacron's Assistant escaped.
However, Primacron survived. Many years later, after the destruction of Unicron, Primacron created a new servant, Tornitron, on the theory that a being of energy would be easier to control. Although Tornitron did go far in his goal to drain the energy from stars and planets, providing Primacron with blank slates to re-create the universe, he too rebelled. Primacron was narrowly saved by Grimlock, who had the scientist throw the entity into reverse and restore the energies it had stolen. After destroying Primacron's lab, Grimlock left.
