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Mel Blanc was apparently the first choice, according to Evanier.

This would have been interesting, considering Scrappy's connection to Henery Hawk, who was voiced by Blanc.

Blanc was reportedly interested, but eventually ruled out by Joe Barbera, possibly because of concerns about his price.

The second consideration was actor Frank Welker, who coined the catchphrase " Puppy Power.

" He would later change this to " Monkey Muscle " for the similar Donkey Kong Jr. character he would voice for TV's Saturday Supercade.

The next choice was Messick, who was seen as giving the best audition, but still deemed " the wrong voice ".

Afterwards, other well-known cartoon voices were considered or suggested: Paul Winchell, Howard Morris, Dick Beals, and even Marilyn Schreffler.

Ultimately, Lennie Weinrib was chosen, and after the first season, Messick became the final voice for the rest of the series ' run.