Christopher was born on 11 Nov. 1972 and was the second child of "For Your Eyes Only" actor Cassandra Harris and producer Dermot Harris. The couple split six years later and Pierce, who married Cassandra in 1980, adopted Chris and his sister Charlotte after their father died in 1986. Christopher worked amongst the crew on many films, including Pierce's Bond films "Goldeneye" and "The World is Not Enough". Following his mother's death, Christopher struggled with substance abuse, as per The Sun, and later became estranged from Piers. According to a 2019 interview with Esquire, Pierce and Christopher have worked to form a "loving communication".