Answer for question 4580.

[Error: unknown template qotd]Listen, bud: when you make up superheroes you can't create just one. You gotta make up a whole universe of the guys if you wanna do it right. So sure, there'll be Professor Death, out to avenge the death of his family after a tragic lab accident, but there'll also be Joruz, Sergeant from the Stars, Skelly the time cop, and a whole host of other super-powered folks.

As for actors, I think that's more of a "cross that bridge when you come to it" situation.