“Precocious and multitalented as a youth, the boyishly handsome Mr. Jones began his career as a teenage radio host and performer in amateur musical revues. He became a stage actor, and he and Jane Fonda made their Broadway debuts together. But it was not until the mid-1960s that he found his niche, as the affable, hapless, clean-cut Everyman in a series of genial family comedies produced by the Walt Disney Company, beginning in 1965 with That Darn Cat!“