Who does tony the tigers cartoon voice?

The original voice of Tony the Tiger was Thurl Ravenscroft. He died in 2005 at the age of 91.

He did other voice work as well, including the classic Christmas special "How the Grinch Stole Christmas." He sang the song, "You're A Mean One, Mister Grinch" but he was accidentally left out of the credits. This caused many people over the years to incorrectly assume that the song was sung by Narrator/Grinch Boris Karloff.

As of this writing, the current Tony the Tiger is announcer Lee Marshall.