James Barbour should've played Krolock. Not a bad choice, but my first choice would have been Marc Kudish. Chuck Wagner would also work.
Considering all the similarities that people have pointed out between the original and the Broadway production, all the "It's ALLLL Michael Crawford's fault!!!! Bad bad Crawford!!!" seems more than a bit silly. I don't disagree that it may have been the wrong show for him -- I'm a big fan of his and I didn't want to see it -- but you can hardly put ALL the blame on the new blood (har!) for making the show over-the-top when that's how it was originally designed to be. There were similarities in the score and the basic storyline, but the book was entirely rewritten. Producers pushed for more obvious jokes, punchlines and sight gags, which is not how the show was originally written or performed. The German production is not camp. It is gothic melodrama with some underlying humor similar to the film on which it is based, The Fearless Vampire Killers.
And yes, Michael Crawford was given a lot of creative control with the character (wasn't he one of the producers?) and he simply could not pull off the role or the style, which was leaning towards Charles Bush's signature Off-Broadway camp (who I remember being brought in to doctor the book). Scenes and characters were cut, added and changed. Songs were rearranged and I specifically remember an article stating that there were instructions frmo the producers that there should be a joke on every page. Even costumes were changed (there was no enormous ruff or codpiece for Krolock in the German production). A different actor playing Krolock would have significantly improved the show, but it would not have saved it. Quite simply, the Broadway production tried to take an already successful show and turn it into something different for American audiences.
"What can you expect from a bunch of seitan worshippers?" - Reginald Tresilian