Jon Pertwee has a tattoo of a cobra on his right arm. It is visible in
Doctor Who serial #51:
Spearhead From Space (1970), during the shower room scene. It can and has been mistaken for a question mark.
The tattoo can be seen in the related link below.The cast of Chal Doctor Doctor Khelein - 2014 includes: Sonel Singh
The cast of A Frontier Doctor - 1911 includes: Arthur Mackley as A Frontier Doctor
The cast of The Gentle Doctor - 1921 includes: Olive Eltone as Anne Fred Paul as The Doctor
The cast of Meet the Doctor - 1924 includes: Eddie Lyons
The cast of As Prescribed by a Doctor - 1910 includes: Fred Evans as The Dude
Which ones- do you mean just the actors who played The Doctor, or are you including his companions and other major stars from the series? You need to try and narrow down your question before it can be answered.
The cast of Forearm Dance - 2005 includes: Athena Arnado as herself Val Guin as herself Natiya Guin as herself Tiffany Hume as Yoga Student Princess Lucaj as herself
The first three actors who portrayed the Doctor are dead. William Hartnell, Patrick Troughton, and Jon Pertwee. The other eight actors who have portrayed the Doctor are still alive.
William Hartnell
The cast of Doctor Bucketman - 2012 includes: Doctor Bucketman as Doctor Bucketman
The cast of Some Doctor - 1913 includes: Arthur Finn as The Doctor
The cast of Chal Doctor Doctor Khelein - 2014 includes: Sonel Singh
The cast of The Doctor - 1926 includes: Margaret Morris
The cast of A Frontier Doctor - 1911 includes: Arthur Mackley as A Frontier Doctor
The cast of Outside In - 1973 includes: Peter Dockley as himself
The cast of Doctor Prema - 2002 includes: Sharmily
The cast of The Doctor - 1991 includes: Barry Brewster as himself