Alex Kingston once stumbled upon a 'Doctor Who' strip show which featured a burlesque performer dressed as various versions of the Time Lord.

Alex Kingston

Alex Kingston

The 55-year-old actress - who has played River Song in the sci-fi show since 2008 - was in Atlanta, Georgia when she ended up watching a surreal burlesque performance based on the popular programme, in which the performer wore TARDIS-inspired nipple pasties.

Speaking to the i newspaper, she said: "I ended up going to a burlesque strip show, and it was very weird because the act was based on 'Doctor Who'.

"The dancer started as William Hartnell. She had his black tuxedo coat and a cravat. She took that off and underneath that she was Tom Baker in a big scarf. Then she took that off to reveal she had Peter Davison's cricket whites on underneath.

"Then she took that off, and she was David Tennant in his little pin-stripey jacket. She must have been boiling. Under that, she was Matt Smith in a bow tie and a fez. ‎Next she took off Matt, and she was the Tardis. She had TARDIS blue sequinned pasties over her nipples and a tiny sequinned G string in TARDIS blue."

Alex also recently had a chance meeting with new 'Doctor Who' star Jodie Whittaker - who will portray the Thirteenth Doctor - at Comic Con in San Diego.

She said: "If you've been on 'Doctor Who', you hug someone who's been on that show like they're an old friend, even though you've never met them before really, or hardly know them.

"It's like, 'I know you, but I don't know you.' So it was really lovely. Jodie and I had a hug, and of course all the fans outside went nuts."