Due to the deliberately inaccurate continuity of the series, he has claimed to be from various parts of Scotland during the series, most recently Kirkwall in the Orkney Islands in the 2012 episode 'The Daughter Also Rises'. This settled the previous continuity problem in which Willie had been stated to be a supporter of Aberdeen F.C, and to have lived in Glasgow. In early episodes, Willie's father was said to be dead. However, his parents were later introduced in "Monty Can't Buy Me Love", and lived near Loch Ness; which is near Inverness. In "The Girl Who Slept Too Little", it is revealed that he has a cousin, "Grave Digger Billy".