He did not return to "Are You Being Served?" (1972) after his first season on the show, even though he intended to, as he was made a better offer NOT to appear on the show. Haytner had been doing the TV voice-overs for Mr. Kipling's Cakes, but the firm did not like him playing Mr. Tebbs as they thought the character was unpleasant and that it would hurt their product's image. When Haynter defied Mr. Kipling's request that he quit the show, saying he would continue in the part, the firm offered him three times his B.B.C. salary if he terminated his connection with "Are You Being Served?" According to co-star Nicholas Smith, who was co-starring in a farce with Hayter during the off-season, "I said, what was he going to decide? 'Well, my boy,' he growled, 'if they will pay me three times as much not to do it, then I won't do it. At my time of life I have no more ambition!'" Hayter, who had replaced Arthur Brough on the show, was himself replaced by Alfie Bass, who also lasted just one season.
Made his stage debut in 1925. He played Alfred Doolittle in Pygmalion in the West End at the Drury Lane Theatre and on tour for five years.