Buckingham Palace hosts Doctor Who celebration THE Daleks invaded Buckingham Palace as stars of Doctor Who past and present attended a reception to mark the 50th anniversary of the show. Four Time Lords in total - Matt Smith, Tom Baker, Peter Davison and John Hurt - were in attendance at the event hosted by the Countess of Wessex. Props from the show, including two versions of the Tardis, a pair of Daleks and K-9 the robot dog, were set up in the Palace's Bow Room. Smith, whose stint as the Doctor ends this year when he will be replaced by Peter Capaldi, said he was "really thrilled" to be invited along and admitted that part of him regretted quitting. He said: "You know, just seeing all my old friends who I work with, they're all here, and the kids having a good time and the actors... It's a great job but I left, so no point crying over spilt milk, is there? The actor also said he would not rule out a return on another anniversary: "Who knows, in another 50 years, if they let me come back, I will, and as of Christmas Day it falls to Peter and I wish him all the best." Others attending the reception for cast and crew included current star Jenna Colman. The series celebrates its 50th birthday this Saturday with an anniversary episode on November 23 called The Day Of The Doctor which features Smith as well as his predecessor, David Tennant. Sophie also met young competition winners from two Cardiff schools where scenes from the 50th episode were filmed. The pupils were asked to come up with drawings of The Queen's Tardis, with the winning pictures on show at the reception today. Doctor Who holds the Guinness World Record for the longest-running science fiction series in the world. It began on November 23 1963 with William Hartnell as the Doctor and there have been 11 Doctors to date. Daleks made in Scotland to feature in new show