(13 August 1969 - 27 January 2004) (his death)
While separated from their respective partners, Fulton met Audrey Matheson Craig-Brown (known as Kate Matheson), an actress 13 years his junior. Matheson saw Fulton perform in a production of Noël Coward's Hay Fever, but it would be 17 years before they met in person. After one day together, Fulton proposed; the couple marrying in 1969. In 1976, Matheson became pregnant but later lost the baby.
In 1998, Fulton began to display symptoms of Alzheimer's disease. In 2004, his wife Kate recalled "he [Fulton] returned home, and, devastated, told her, "I can't remember lines any more." In 2002, after being diagnosed with the disease, Fulton remained at his own home and fronted that year's Alzheimer Scotland Christmas appeal. However, he grew to depend on his wife more and more. It was decided that Fulton would go into care and was moved into the Quayside nursing home In 2003, after breaking his hip in a fall, he was admitted to the Western Infirmary and then to Gartnavel Royal Hospital for assessment. After contracting the superbug MRSA, and returning to the Quayside home, Fulton died peacefully in 2004, aged 79 years