Bill Scott began work as a voice actor as well when he joined Jay Ward as head writer and co-producer, and voice acted in such television series as The Rocky and Bullwinkle Show (most notably as Bullwinkle and Mister Peabody, as well as Dudley Do-Right and George of the Jungle).

In a 1982 interview, Scott said, "I got a call from Jay [Ward] asking if I'd be interested in writing another series, an adventure script with a moose and a squirrel. I said, 'Sure.' I didn't know if I could write an adventure with a moose and a squirrel, but I never turned down a job."

Scott never received an on-screen credit for his voice acting on any of the Ward series.

Mel Blanc was the original voice of Yosemite Sam and many other "toons".

Frank Nastasi played White Fang and and Black Tooth on the Soupy Sales Lunch Show.

Jim Backus (died July 3, 1989, age 76) voiced Mr. Magoo.

More Info: en.wikipedia.org