Doctor Who - A Celebration BBC Wales Radio Special Now on iPlayer
Description from the BBC Doctor Who site:
Matt Smith shares his thoughts on the character of the Eleventh Doctor and Executive Producer Beth Willis reveals why she was a fan of Doctor Who even before joining the team. Lead Writer and Executive Producer Steven Moffat recalls casting the Time Lord and why he had to give Matt Smith the keys to the TARDIS! Previous cast and crew members such as writer Terrance Dicks are featured and there's a wealth of archive material from recent and not-so-recent adventures.