Well I am not an expert but just from Kent we have – Caxton of the printing press, Actors Sydney Greenstreet (Casablanca), Ballard Berkley (The Major), Harry Andrews (many British war films inc The Battle of Britain and 633 Squadron), Trevor Howard, Peter Cushing, Hattie Jacques, Tom Baker, Michael Crawford, Brenda Blethyn, Mark Rylance, Paul Ritter, Tamsin Greig, MacKenzie Crook, Orlando Bloom and Gemma Arterton..
Charles Dickens and the great landscape artist Turner both spent most of their life in Kent. Also from Kent Peter Rogers Producer of the Carry on Films, Oliver Postgate and Peter Firmin who created The Clangers and Bagpuss, Peter Blake the pop Artist (Sgt Pepper and Stanley Road), Zandra Rhodes, Mary Quant and Quentin Blake the illustrator. Mick Jagger, Keith Richards, and Bill Wyman are all Men of Kent. Other musicians include Noel Redding, John Paul Jones, Sid Vicious, Billy Idol, Siouxsie Sue, Kate Bush, Shane MacGowan.
And finally Frank Muir, Michael Bentine, Rod Hull (and Emu), David Frost, Jack Dee, Tony Hart, Ian Hislop, John Lloyd, Brian Moore, Barry Davies and a few more writers Geoffrey Chaucer, Frederick Forsyth, Christopher Marlowe, E Nesbit, Somerset Maugham and HG Wells
And thats just Kent....