According to Wikipedia,
Donald James Yarmy , known professionally as Don Adams, was an American actor. In his five decades on television, he was best known as Maxwell Smart in the television situation comedy Get Smart , which he also sometimes directed and wrote. Adams won three consecutive Emmy Awards for his performance in the series . Adams also provided the voices for the animated series Tennessee Tuxedo and His Tales and Inspector Gadget as well as several revivals and spinoffs of the latter in the 1990s.