Venom
No. Its Megatron.
Centanial Prime
heaps the main one is the fallen
Transformers 3: Dark of the moon
Venom
Shockwave
No. Its Megatron.
megatron
Possibly Galvatron
The Fallen is one of the Seven original Primes that came to Earth to harvest the sun for Energon. He is the main villain in the second movie.
Victor Bronco
Centanial Prime
The assassin in Transformers: Dark of the Moon is Laserbeak, a mechanical condor-like Decepticon who serves as a spy and assassin for the main villain, Megatron. Laserbeak is skilled in espionage and is tasked with eliminating threats to the Decepticon cause.
The main villain in Final Fantasy VII is Sephiroth
Mrs. Danvers, the housekeeper, is the main villain in Rebecca.
Of course, he is the main character. He will be in all Unanimated Transformers Movies. I know because I sort of help them with props and stuff.