Wylie was the son of Lieutenant-Colonel Macleod Wylie, who was Recruiting Officer for Gurkhas, one of his grandfathers was
Henry Wylie, who had been the
British Resident at Nepal (1891–1899). He was born at
Bakloh,
Himachal Pradesh, regimental home of the 4th Gurkhas in the Punjab hills, and by the age of six he was fluent in the language of his garrison playmates. He was educated at
Marlborough College where his housemaster was
Edwin Kempson, who was a member of both the
1935 British Mount Everest reconnaissance expedition and the
1936 British Mount Everest expedition. Kempson played a key part in teaching Wiley to climb, wih summer seasons in the
Alps and Scottish winter climbs. After retirement Charles worked on behalf of charities as Secretary of the
Gurkha Welfare Trust and the Britain-Nepal Medical Trust and was Chairman of the Britain-Nepal Society for five years. He was awarded an
OBE in the
1995 New Year Honours in recognition of his charitable work. He died in Guildford on 18 July 2007. ==Army service==