If you want a fascinating and cosmic backstory to a character, Hyperion's is the one you are looking for!
Starting as a WW2 US Marine, exposure to something nasty Hitler's scientists were cooking up transformed him into the solar-powered Captain Victory, arguably the very first 'meta' to impact on public consciousness. Sticking firmly to his ideas of public service, he avoided political machinations and seemed to meet his death seeking to protect innocent bystanders from an overload of his powers that was heading for a gigantic explosion.
But that was not the end of him. Catapulted through a wormhole to the Andromeda galaxy, he was picked up by the United Celestial Constabulary, and helped this multi-world organisation create a military arm in which he served with distinction taking on a new outfit and the name Hyperion.
It's an interesting character, but one wholly-absorbed by his activities in the Andromeda galaxy, chiefly skirmishes with Regent and his cohorts. If that's your area of interest, fine: but if your campaign is purely earth-based you may have little use for him!