Paul Farquhar
Legend
So the similarities to the 80s Flash Gordon movie (the American Dan Dare) and the British Eagle comic aren’t from the original.In the original comics' version he was a small-time actor, who got empowered by Baron Zemo so he could be a spy for him as a member of The Avengers. He flipped and allied with The Avengers, instead, and was killed. Then his life essence inhabited The Vision (who I believe was created by Hank Pym, not Tony Stark in comics), then was reborn later on.

