While we're on the subject of missing performances, the name Donna Murphy comes to mind. I don't know why people are bashing on Sara Ramirez when Ms.Murphy used her understudy quite a bit.
I hope they cast a good voice for Ariel that is not too Disneyified and use someone who looks the right age for the part. Kerry Butler is about 35. SHe could still do the part. I mean Kristen Chenoweth is almost 40 and is still playing those parts.
"He who falls in love with himself will have no rivals"
-Benjamin Franklin