Dudley was born with club feet and required extensive hospital treatment as a boy.
He became a choirboy at the age of six and took up the piano and violin. He rapidly developed into a highly talented pianist and organist and was playing the pipe organ at church weddings aged 14.
Moore's musical talent won him an organ scholarship to Magdalen College, Oxford.
While studying music and composition in Oxford, he also performed with Alan Bennett in the Oxford Revue.
Bennett then recommended him to the producer putting together Beyond the Fringe, a comedy revue, where he first meet Peter Cook.
Dudley was just 5ft 2 ½. He didn't lose his virginity until he was 22 but thereafter gained a reputation as a ladies man. The media often referred to him as 'Cuddley Dudley' or 'The Sex Thimble'.
Dud was offered his own series on the BBC, Not Only... But Also. It was commissioned specifically as a vehicle for Moore, but when he invited Peter Cook on as a guest, their comedy partnership was so notable that it became a permanent fixture of the series.
Most of NOBA was wiped by the BBC so we only have very few surviving sketches. Of the original programmes, only eight of the twenty-two episodes still survive complete
Peter attended Pembroke College, Cambridge, where he studied French and German. Cook initially intended to become a diplomat like his father, but Britain "had run out of colonies", as he put it.
It was at Pembroke that Cook performed and wrote comedy sketches as a member of the Cambridge Footlights Club, of which he became president in 1960.
Whilst still at university, Cook wrote for Kenneth Williams, providing several sketches for Williams' West End comedy revue Pieces of Eight, and much of the follow-up One Over the Eight
Cook set up The Establishment Club - one of the performers there was Australian comedian and actor Barry Humphries.
Peter had a falling out with David Frost and referred to him as 'the bubonic plagiarist'.
Cook provided financial backing for the satirical magazine Private Eye, supporting it through difficult periods, particularly in libel trials. He went on to gain a controlling share in the magazine.
Cook became a favourite of the chat show circuit but his own effort at hosting one for the BBC in 1971, Where Do I Sit?, was a disappointment. He was replaced after only two episodes by Michael Parkinson.
Dudley got offered the role in '10' while he and director Blake Edwards were in group therapy together.
Moore was nominated for a Oscar for his role in Arthur but lost out to Henry Fonda for On Golden Pond, but he did win a Golden Globe.