[High Praise! to Neatorama]
The Many Facets of Character Voice Acting
And if you click on the videos at the link, I have to say, Mel Blanc makes it look ridiculously easy.
[Think you have a link that’s IMAO-worthy? Send it to harvolson@gmail.com. If I use your link, you will receive High Praise! (assuming you remember to put your name in the email)]

Not really that hard, I used to do voices for my kids reading Dr Suess. It turns out the fish spoke with a Cockney accent.