Toda , 25th March 1920, Patrick George Troughton was born at Mill Hill, Middlesex, England. Best known as portraying the second incarnation of the Doctor (aka 'Cosmic-Hobo'). Happens to be my birthday too!
Patrick died from a heart attack on 28th March 1987 a few days after appearing as a guest at the Magnum Opus Con II science fiction convention in Columbus, Georgia, USA, aged just 67.
His son David Troughton starred in 3 classic Doctor Who stories The Enemy of The world, (1967/8) The War Games (1969) and The Curse Of Peladon (1972).