Start up the TARDIS, the 14th season of Doctor Who has its first teaser trailer and it appears that Tenth Doctor David Tennant returns for the 60th anniversary special that kicks it off before another Scottish actor, Ncuti Gatwa, officially takes on the role of the titular Time Lord.

Because the famous character is an alien who regenerates into different forms rather than die, there have been over a dozen actors who’ve taken on the mantle since the original program began in 1963. And more than a few have been notoriously nude!

Paul McGann Running Naked in The Rainbow

So which ones have gotten us all wibbly-wobbly? Sadly, only one of them is from the first iteration of the UK sci-fi show. The last Doctor before the 2005 revival was played by 80’s British indie heartthrob Paul McGann who’s most skintillating role came in 1989 with some full frontal frolicking in The Rainbow.

The Doctor is SKIN: The Dr Who’s Who’ve Gone Nude

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John Hurt's Dystopian Derriere in 1984

Between the events of original series and the current one came the Time Wars, and that version of the Doctor (known as the War Doctor) was played by acclaimed actor John Hurt, who notably bared his booty in the film adaptation of the George Orwell's 1984.

The Doctor is SKIN: The Dr Who’s Who’ve Gone Nude

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Chris Eccelston is Lennon Naked

When Doctor Who was brought back, it starred Chris Eccleston as a more modern, black-clad version of the Doctor. But by then Chris was already known for showing skin with his breakthrough role in 1994’s Shallow Grave. He kept at it with his portrayal of John Lennon in the 2010 film Lennon Naked, and boy is he! We get a great look at his Strawberry Fields both in in bed and the infamous naked photo shoot with Yoko. And he stripped down again for the HBO series The Leftovers when he’s put in the stocks fully nude. We love seeing Chris’s lock, stock AND barrel!

The Doctor is SKIN: The Dr Who’s Who’ve Gone Nude

The Doctor is SKIN: The Dr Who’s Who’ve Gone Nude

The Doctor is SKIN: The Dr Who’s Who’ve Gone Nude

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David Tennant's Timeless Booty

David Tennant may be a fan favorite but he needs to step up his nudity game to becomea Man favorite. Although we do get to see him bare from behind in Recovery, we could always use more skin from this sexy Scot!

The Doctor is SKIN: The Dr Who’s Who’ve Gone Nude

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Matt Smith Nude in House Of The Dragon

If you didn’t know Matt Smith as the bow-tie wearing Eleventh Doctor, chances are you know him - and his beautiful bum - now as the devilish dragon lord Daemon Targaryen on House Of The Dragon.

The Doctor is SKIN: The Dr Who’s Who’ve Gone Nude

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Cutie Ncutie Gatwa Gives Us Some Sex Education

And for those who don’t already know Ncuti Gatwa, it’s time for an education. A Sex Education! Ncuti has been lauded for his performance as Eric on the Netflix series, which has had him romantically involved with a few hotties and given us some stellar guy-on-guy action, including this scene with tons of couples going at it like animals!

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