Mawdryn Undead is the third serial of the 20th season of the British
science fiction television series Doctor Who, which was originally
broadcast in four twice weekly parts on BBC1 from 1 to 9 February
1983.The serial is set in an English boarding school and a spaceship
above the Earth in 1977 and 1983. In the serial, the scientist Mawdryn
(David Collings), whose people on board the ship have been afflicted
by a mutation that constantly causes their bodies to renew themselves,
seeks to die using the regenerative abilities of the alien time
traveller the Fifth Doctor (Peter Davison) to stop this process and
allow them to die.Mawdryn Undead is the first of three loosely
connected serials where the Black Guardian (Valentine Dyall) compels
the alien Vislor Turlough (Mark Strickson) to kill the Doctor, and
introduces Turlough as a regular character. Nicholas Courtney is
reintroduced as Brigadier Lethbridge-Stewart, who was last seen in the
series in the 1975 serial Terror of the Zygons. Mawdryn Undead Biography, NetWorth, Height, Age, Weight, Family, Married, Son, Daughter