The son of an accountant, Davies was educated at grammar school and studied at art college to be a commercial artist before becoming an actor.
Davies played at the Harrogate and Sheffield reps before doing a two-year course at the Royal Academy of Dramatic Art.
He is best known for his role as Dr. Dick Stuart-Clark in the hugely popular British television comedy series Doctor in the House (1969–1970).
Back in the UK, he appeared in Bergerac and at Windsor and the Old Vic where he was in The Ghost Train.
His television work includes Casual Affair, Kindly Leave the Raj and the Fossett Saga.