AI- Voice Changer TMNT use?
 

https://www.youtube.com/watch?v=gooIrcZEVSE

I wonder if we can get it to train sound like Pat Fraley's characters, or James Avery Shredder? we can get them to try and record lines they missed ;o)

You can but you might want to find clips without music, sound effects or other characters talking, or at least try to edit out the undesired sounds. You want to be sure the machine really just hears the desired voices, otherwise it might assume the noise is part of the training.