QUOTE(theatreboy06 @ Mar 18 2007, 03:42 PM)

What are the best understudies we've seen? I saw a great one on for Anna Maxwell-Martin as Sally Bowles in Cabaret recently.
Jason McGann was on for Glenn Carter when I saw Whistle Down the Wind and he was excellent in all respects and Lee Mead understudying Ramin Karimloo in the recent 'Miss Saigon' tour also stands out for me. Also, years ago (must have been about '93 or '94) I saw a girl called Sarah Ryan go on as Christine in Phantom of the Opera in Manchester and, having already seen the show with the principal cast, she totally blew me away with a magnificent performance. 13 years later and I chanced upon the website for the same girl with recent clips of her singing and on the clips she doesn't sound half as good as she did then.
The vast majority of times I have seen an understudy go on I have not been disappointed, however I remember on particular occasion when Phantom made a return to the Manchester Opera House (bout 98', '99 ish) and at the performance I was at the Phantom understudy was on. Well, he was awful. The quality and tone of his singing was unpleasant to listen to and he couldn't act and subsequently the whole performance of the show was detrimentally affected by this dreadful piece of casting.