Mark Ambient

Harold Harley (20 June 1860 – 11 August 1937), known by his pen name Mark Ambient, was an English actor and dramatist. He is particularly noted as a writer of the musical comedy The Arcadians, first produced in 1909.

He was born in Rastrick, Yorkshire, son of Robert Harley, a Congregational minister and mathematician. He was educated at Mill Hill School in London, where his father was vice-principal, and King's College, Cambridge, graduating BA in 1884.