Charlotte Church has one of the worst singing voices you've ever heard? Come, now.
I can understand not liking her voice too much, but one of the worst you've ever heard?! There are SURELY worse singers heard on stage...
Here are some strong contenders in the "worst" I've ever heard (in a Broadway musical) category...
Frances Ruffelle
Michael Crawford
Jane Krakowski
Liliane Montevecchi
Sheryl Lee Ralph (in MILLIE only. In DREAMGIRLS, she's fab.)
Fisher Stevens
As far as casting Ms. Church as Truly Scrumptious, I think the only drawback is that she's too young for the role, don't you think? I guess it all depends on the casting of the male lead.
I don't really have a problem with bringing performers from overseas to appear on Broadway -- just as we send Americans to the West End. I do feel, however, that it should only be necessary if the role is perfectly designed for that particular actor (i.e. Lea Salonga in MISS SAIGON). The role of Truly is a pretty bland ingenue. Couldn't a number of American actresses play that role? Why bother bringing her over? I don't think that her name is going to make ticket sales jump. The title of the show is enough for great advance sales.
Itty Bitty Geisha?
Toyland?
Gypsy Pasadoble?
Just a few popular favorites...