Olaf Pooley

Olaf Pooley (13 March 1914-14 July 2015 ) played Professor Eric Stahlman and Director Stahlman in the Doctor Who television story Inferno.

Career
He had a role in  in 2000, making him one of the very few actors to appear in both Doctor Who and Star Trek. At the time of his death, he was the oldest living actor from both franchises.

In 1966, he starred in the six-part Southern TV adaptation of T.H. White's adventure novel The Master, playing the 157-year-old titular character, who has the power of hypnosis and thought-transference, with aspirations of world domination.

In his final years, he took to painting, and celebrated his 100th birthday with an exhibition of his own works.

Death
He passed away after suffering congestive heart failure at the age of 101.

He was the third person associated with Doctor Who to reach the age of 100, after extra Lewis Alexander and actress Zohra Sehgal. He was the oldest living actor to have appeared in Doctor Who from Sehgal's death in 2014 until his death in 2015, after which Peggy Batchelor became the oldest living Doctor Who actor.