Alistair Aldridge

Alistair Aldridge (アリステア・アルドリッジ), born as Experion, is a major antagonist in the first season of Ultimate. He was an alien sent to Earth from a dying planet by his late unnamed parents, a former member of Helix, and the younger brother of Hyperion.

After being rocketed to Earth, alongside Hyperion, who established himself in another planet, he was discovered by the Aldridges, a family of humans who raised him as their son in the city. However, he was taken by the government, making Alistair resent them and became corrupt, secretly infiltrating Hexagon and joining Helix.

He and the other members of Helix became false allies to the Legends but their true colors were quickly revealed. After Prometheus was unleashed, Alistair and the others engaged in battle with the Legends. During the battle, his older brother Hyperion arrived and gave his power to Nathan Schmidt, increasing his strength enough to match Alistair.

As a last ditch effort, Alistair triggered a bomb inside him and was killed in the blast.