Title is based upon the parliamentary expression "The ayes have it."
Tobin Bell starred with Emmanuelle Vaugier in the saw franchise
The spell used in this episode is the one they came up with to vanquish the Source.
Emmanuelle Vaugier also played a doctor on several episodes of Smallville, another WB show from the same period.
Once said character appears, five minutes do not go by without the witches repeating her name "Ava", over and over again. Whether calling out to her or talking about her between each other. Instead of using "she" once the name has been established, for some unknown reason on the part of the scriptwriters, they all keep repeating "Ava".