After Several Years Retirement...Richard Haydn To Guest On 'Bewitched' EpisodeRichard Haydn, who retired from his motion picture and stage career several years ago, plays a guest role on ABC-TV’s “Bewitched,” Thursday, April 11, in an episode titled “A Majority of Two” (8:30-9 p.m., EST).For Haydn, retirement is a sometime tiling. “If you’re born with a little ham in you, you just can’t stay out of show business,” he explained on the set. “If I do not get into make-up and experience the excitement of work ing on a sound stage from time to time, I begin feeling ‘shut off.’ ”Mr. Mishimoto, the Japanese businessman in “A Majority of Two,” was a good enough reason for Haydn to leave his home in Pacific Palisades, Calif., and forget about retirement for a few- days.“When I read the part, I liked-the challenge of ihe role,” Haydn explained. “Because I am not Oriental, it is up to me to assume the attitudes of the polished. well - traveled Mishimoto, to make viewers believe that I am Japanese.“On the stage in London manyyears ago I played a Chinese ina production of ‘The Letter,” and a Japanese foie later in a repertory company. But these are my only other Oriental roles. Mishimoto is literally something new for me.”Haydn first came to the United States to play a part in Noel Coward’s “Set to Music” in 1938. lie began his stage career in his native England 44 years ago, but did not make his motion picture debut until he came to the United States. He directed three films at Paramount Pictures in his early days in Hollywood, but soon realized he was a better actor than director. “I think what I did not like about directing was the trouble you frequently have with the front office. An actor’s life is simpler.”Reminiscing, Haydn said that his favorite role was in “Cluney Brown” in 1947, though in recent years he has had featured parts in such motion pictures as “Mutiny on the Bounty” and “The Sound of Music.”He puts into practice . bis theory about enjoying life as you live it, i.e., doing what you like to do as you go along. “Too many people live far ahead in the ‘someday’ — a day that never comes for most of us.”