After leaving Doctor Who, he wrote novelizations for many of the serials. He was in the process of writing "The Rescue", when he suffered a heart attack and died.
During his brief tenure on Doctor Who, he co-wrote the film script of the ultimately-doomed yet well known "Doctor Who meets Scratchman" or as it is also known, "Doctor Who and the Big Game".
He wrote a few books under the name Ian Don (Don being his middle name).
He wrote many Doctor Who Target novelizations, and caused a controversy by using swear words in "The Enemy of the World".
His fatal heart attack was brought on by Diabetes complications.