Arthur is a graduate of Durham University and trained for the theatre at the Drama Studio London. 

Most recent work includes Malvolio in Twelfth Night (Original Theatre Company 2011), Martin in Hebburn (BBC 2 Autumn 2012), Antonio in The Merchant Of Venice (Lancaster), Daniel in Can We Stop It There? (Library Theatre), Martin Parnaby in Doctors (BBC 1) , Bishop of Lax in See How They Run at the Royal Exchange Manchester , The Good Soldier Svejk (Radio 4) and Horne and Corden (BBC 3). 

Other recent work includes The Return of ĎAllo ĎAllo! (BBC 2), Eric Fenby in A Late Lark (Radio 3), Andy in Woman in Mind, Moriarty in Sherlock Holmes for the 2006 Gawsworth Season, Njegus in The Merry Widow for Carl Rosa Opera (National Tour), Sir Lucius O'Trigger in The Rivals with Gabrielle Drake and Michael Jayston (National Tour), Roger in Anyone for Breakfast? and Bedside Manners with Tim Brooke-Taylor and Sir Andrew Aguecheek in Twelfth Night with Kate O'Mara. 

At the Lyric Studio he played Kenyon in the premiere of Rodney Clark's acclaimed play My Native Land. He has worked in many UK repertory theatres: notably playing the lead part of Aubrey Allington in Tons of Money at West Yorkshire Playhouse, Jerome in Three Men in a Boat at Exeter and PG Wodehouse's Candlelight at Watford Palace Theatre. 

He is best known for playing Crabtree in the classic TV comedy ĎAllo ĎAllo! which ran from 1984 to 1993, the stage version of which toured the UK, Australia and New Zealand as well as five seasons in London 's West End. Other TV appearances include Miss Marple: The Body in the Library, Return to Treasure Island and 99-1.  

Arthur has spent much of the last three years writing and completing a novel and, catching up on his academic past, recently became a Fellow of the Royal Geographical Society. He was one of three judges for the Portico Prize for Literature in 2012. He moved from the south to Manchester in 2006 and regards it as one of his better decisions.