Hence the "so-called" bit. And their lives may or may not have been ruined, but their acting careers were most definitely affected for the worse in every single case.
Alyn was straight-up typecast. Whenever he did non-Superman roles, the audience just couldn't take him seriously.Reeves took his life, but had issues prior to portraying Superman. Reeve was injured in an accident and turned that around to inspire millions of disabled people to aspire to not only function again, but flourish. Kirk Alyn had problems outside of casting that had nothing to do with playing Superman.
Reeves had had serious acting aspirations, and actively loathed what he perceived his role of Superman had to done to them. His role as Superman contributed big-time to his depression.
Holiday's acting career peaked with Superman, at a time when Superman was not taken seriously at all by adults. He needed to change careers to find success, as Superman killed his acting career.Holiday had a successful run as Superman on Broadway, became a home builder, had a successful career, and now enjoys retirement and making convention appearances.
Haymes-Newton and his feud with the Salkinds on that show actively led to him being fired and a lot of long-standing bad blood. As with Gerard, both of their acting careers took a nosedive after playing Clark Kent.Haymes-Newton and Gerard's careers have not been "ruined;" both have enjoyed TV and stage work and I don't think they were necessarily huge talents that were somehow held back by typecasting.
I'm pretty sure any of these gentlemen had been told with certainty what would happen to their acting careers after their involvement with Clark Kent, all three would never have taken the role. Cain has had to go outside acting (possibly conservative politics). Welling is doing what since SMALLVILLE exactly? His HELLCATS tv show was cancelled and he's gone through a bad divorce. He's out of Hollywood.The same goes for Cain, Welling, and Routh; they're all working in various projects and will continue to receive some percentage of royalties from products/media sales of their respective series or films.
I'm pretty sure most actors like Christopher Reeve get into the acting game not to be known only for one role. If even Reeve, whom I agree had tremendous acting potential, couldn't escape typecasting, then there's reason to be concerned about Henry Cavill's career.The only person, IMO, who had tremendous acting potential that might have been affected by playing Superman is Christopher Reeve, but he stated in more than one interview that it was an honor to play Superman and that he was grateful for the opportunity to change people's lives by the role.
One, he'd look like a real d-bag if he publicly bitched about what missed opportunities Superman was responsible for (like Brandon Routh did when he learned there'd be no sequel to SUPERMAN RETURNS) and he's smarter than that. Two, if I was Henry Cavill, I'd look at each of the previous 9 guys' careers as examples of what not to do.If he was able to move beyond the initial frustration he likely felt from being typecast and see the role of Superman as a blessing rather than curse, who are we to feel any differently?