It probably wouldn’t be complete without June Foray and Mel Blanc.
Frank Welker should probably be there too.
Anybody else have any nominees?
Dan Castellaneta, Hank Azaria, Harry Shearer each do multiple characters enough to rank them.
June and Mel were excellent starting in radio.
One could argue for the **Pixar **clan: Hanks, Tim Allen, John Ratzenburger, etc.
How about **Casey Kasem **as Shaggy for Scooby-Doo and Robin on the Super Friends?
Billy West has got to be in there, too. He’s done Larry Fine, Stimpson J. Cat, Doug, Bugs Bunny, and Phillip J. Fry.
Or Grimey, as he likes to be called. 
What, no love for Maurice Lamarche?
Phil Harris, no not the late fisherman.
I’ll add Phil LaMarr.
Hermes on Futurama, Green Lantern on JL and JLU, Samurai Jack, Ollie Williams on Family Guy, Kit Fisto on Star Wars: The Clone Wars among others. Plus, as an added bonus he was Marvin in Pulp Fiction.
And Nacy Cartwright. And especially the late, great Phil Hartman.
Did Frank Nelson do any voice work? I’m thinking he must have. Yessss?
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I can’t believe I’m the first person in this thread to mention Frank Oz.
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I’d put James Earl Jones on that Mt. Rushmore, too. He hasn’t done much voice acting, but what he *has *done is pretty memorable.
Darth Vader and the CNN commercial? No, the truly talented voice actors are guys like Billy West, Maurice Lamarche and Mel Blanc. JEJ has a friggin’ sweet-ass voice, but he doesn’t really voice act - he just talks.
Billy West has to be #1, though, doesn’t he?
A lot of the folks named have done fine voice work but they do variations of the same voice over, and over, and over.
But it would never have occurred to me that Dr. Zoidberg, Fry, Stimpy, Ellyvan from “Jungle Junction” (my kid loves that show) Zapp Brannigan and many others were voiced by the same actor.
And another one to throw in: Seth MacFarlane. Love or hate Family Guy, his range as a voice actor is quite remarkable (and he can sing, and sing well, in any voice he does, which is all the more impressive.)
Hans Conreid?
Daws Butler ranks.
Allan Reed and Jean Vander Pyl (Fred and Wilma)
And don’t forget Allan ‘Rocky’ Lane (Mr. Ed)
Okay, if we’re truly going for Mount Rushmore status, I’ll vote for these three. Granted, there are a LOT of prolific voice over actors & actresses out there, but these are the ***legends ***of my generation.
And the great but nearly forgotten Arthur Q. Bryan. “Kill the wabbit.”