Board Thread:General Discussion/@comment-4040842-20150101180713/@comment-29714229-20150102060019

If one person had to voice them all then Tara Strong is the only person I believe could voice all three (very different characters) well. You may of heard of her, she has voiced Bubbles (PowerPuff Girls, Raven (Teen Titans), Harley Quinn and many others. Although I think all the voices are fine now. Amy's was the worst it has ever been in Sonic Lost World but it became one of the best voices (in my opinion) in Sonic Boom.  Cindy Robinson obviously listened to criticism.