text: Your best bet would be to go to www.imdb.com and look up whatever show it is you're looking for.  To test it I typed in harvy birdman, simpsons, and muppet babies (haha, thought I'd go for something I didn't think I'd find, but amazingly I did).  So if I could find info for those 3, I'm sure you can find info on the voices of the characters, as long as it's probably not too new.  Hope that helps.