June Foray
Iggy/Muggsy/ Grandma/ Sonja/Marcy (52 eps)
Henry Corden
Clem/Digby/Dogcatcher (52 eps)
Mel Blanc
Heathcliff/Spike/Milkman (52 eps)
Frank Welker
Dingbat (52 eps)
Don Messick
Sparerib/ Nobody/ Mr. Post/ Mr. Snyder (52 eps)