I recall Mrs Pearce was directed to "have the hots" for Higgins and during the servants chorus the servants heads popped out of spaces in the bookcase in the study. Freddy was very "light of foot" and it showed as he did quite a bit of dancing in the ballroom scene.
Chamberlain was merely okay but it was the first time I realized he had a beautiful speaking voice.
"Long live God!" (GODSPELL)