Ian Don Marter (28 October 1944 – 28 October 1986) was an English actor and writer, known for his role as Harry Sullivan in the BBC science-fiction television series Doctor Who from December 1974 to September 1975, with a non-regular, one-serial return in November and December 1975. He sometimes used the pseudonym Ian Don. Marter died suddenly in 1986.

Biography

Born in Warwickshire, the son of Donald Marter and his wife Helen Donaldson, after graduating from Oxford University in 1969, Marter initially worked at the Bristol Old Vic theatre, where he was a stage manager as well as acting in various minor roles. To support his low actor's wages, he also worked for a time as a milkman and a schoolteacher.

Marter married Rosemary Heyland in 1968, and had two sons, Rupert and Toby.

He died suddenly at his home in London on his forty-second birthday in 1986, after suffering a heart attack brought on by complications of diabetes.