 Ernie Coombs, one of the Americans whom Rogers brought with him to help develop the CBC show, would remain with CBC after Rogers returned to the United States.Coombs first appeared as Mr. Dressup in the CBC program "Butternut Square", conceived and produced by Attridge.Coombs then helped to develop what became "Mr. Dressup" which ran for nearly 30 years, ending in 1996.