You'll recognize this commercial for Tootsie Roll Pops. It's been running on television, off and on, since its debut in 1969. They've recut it and reanimated parts of it and it was even redone in CGI…but this seems to be the full, original, minute-long version.
Here's the rundown on the voices. The little boy is Buddy Foster, who was the older brother of Jodie Foster. The cow is Frank Nelson, who you may recall as the man on The Jack Benny Program who always said, "Yesssss?" The fox is Paul Frees, who was the voice of everything while he was alive. The turtle is Ralph James, an actor who is probably best known today for voicing Orson, the commander of Mork on Mork & Mindy. The owl is the great ventriloquist, Paul Winchell, and the announcer at the end is Herschel Bernardi. Mr. Bernardi, of course, was starring in a TV series called Arnie around the time this was done, and was best known as the voice of Charlie the Tuna.
And while we're at it, here's the 30-second CGI version. Does anyone not like the original better?