Sentinel Prime

Initially, Sentinel was presented as a humble, kind-hearted and well-loved leader who was the living manifestation of peace and prosperity. He was also shown to be a courageous and encouraging leader, always praising the hard work of the minerswho collected Energon. He was also respectful towards both Orion aka Optimus Prime and D-16 aka Megatron, after the two impressed him during the Iacon 5000 race event, and even personally thanked the two for inspiring the miners and invited them to his personal quarters so they can be patched up.However, it would all turn out to be a facade, as in truth, Sentinel was actually an utterly depraved, manipulative, vain, narcissistic, fraudulent, traitorous, tyrannical, cold, arrogant, egotistical, deceitful, black-hearted, and cruel usurper who willingly sold out his own race to the Quintessons to claim power for himself and giving away their Energon to the Quintessons. He was even willing to have the miners work triple shift to collect Energon, despite the high risk of them potentially dying. He also was aware of how much of a power-hungry monster he actually was, as he brags about wanting to be a king and have power over others. He had also showed sadistic tendencies, as he personally killed each Prime in cold blood and brutally carving Megatronus' insignia into D-16's chest with a blowtorch, simply to mock him and the memory of his idol hero, showing he has no remorse for others.

Sentinel lacked any form of empathy towards all other Cybertronians. He was also quite cowardly, as not only he would routinely hide behind his troops instead of fight someone head-on, even when he was fully capable of holding his own in a fight, but would also pathetically beg for mercy when his life was threatened, as shown when the Quintessons torture him for not bringing them enough Energon.

Appearance: Sentinel is a tall and muscular Cybertronian around 35 feet. His body is primarily royal blue; with gold featured prominently as a secondary color, along; with several silver highlights and an unknown symbol on his forehead painted in yellowish-gold. His eyes were a bright shade of blue and he also had a golden set of wings mounted on his back, indicating his aerial alternate mode. After his actual colors were revealed, Sentinel had assumed a more combat-oriented battle form, where his feet permanently became thrusters, his wings had rearranged to reveal missile launchers and his arms became blasters well his head has a battle mask formed; by parts of his head and helmet.

His arm blasters are both different, as the right one can also can protrudes and takes the shape of a pincer. When deployed, the hand shrinks into a brysynchron and enters the cannon. Left arm sports a dual-barreled wrist shooter and an energon shield on it. Due to the shield's nature, it also sports a dual-barreled wrist shooter where the energon shield comes out, although both configurations can only be used separately.

Iacon is the capital city-state of Cybertron and the primary Autobot stronghold, typically depicted as the planet's northern hub. It serves as the seat of government, home to the Hall of Records, and is frequently under siege by Decepticons during the Great War. It is known for its high-tech defenses and as a, often, last bastion of freedom.