FYI he was a famous voice impersonator at the height of his career in 1978, for those too young to remember. He played EVERY part in the entire production, each with its own famous voice.
Unfortunately, all of the characters (voices) he did are long dead, as is he. It was better in 1978.
You’ve seen one, you’ve (mostly) seen them all, which is Albert Finney (1970) stands out. Some great songs, including an Academy Award nominee.