Ronnie Hazlehurst. Rumour has it that he cut a rakish figure, with a Zappa-style moustache, but as I've never found a photo of him I can't confirm it. Spitting Image did a fantastic sketch years ago around the time Andrew Lloyd Webber did his Requiem, in which Melvyn Bragg presented a South bank Show portrait of Ronnie Hazlehurst on the occasion of the premiere of his Requiem. When I was a kid it seemed like there wasn't a show on TV he hadn't written the theme tune for.
Update: Here's a couple of photos. The second one is him conducting at the Eurovision Song Contest. Those were the days.