When half the shows and movies being made are comic book/super hero stuff, it's bound to happen. Actors gotta' eat.
Basically, yes.
I mean, fans connect to characters in a different way than actors do. Sure, sometimes they play a part for years and feel really connected to the character. Sometimes they'll even connect with a character when they see how much a certain part can impact viewers.
But generally speaking, it's a paycheck for them. Especially when it's a returning character. He's Talbot for AoS fans. But I remember him most from Heroes and really had to unsee him from that to get into him as Talbot. I kept expecting a 'Flying Man!!!' from somewhere ofscreen.