Comper was born in Aberdeen, the eldest of five children of Ellen and the Reverend John Comper, he was educated at Glenalmond School in Perthshire and attended a year at the Ruskin School of Art in Oxford.
Comper was born in Aberdeen, the eldest of five children of Ellen and the Reverend John Comper, Rector of St Margaret of Scotland. He was educated at Glenalmond School in Perthshire and attended a year at the Ruskin School of Art in Oxford.