Watling was a familiar face in British television, appearing in episodes of The Adventures of Robin Hood, Danger Man, Ghost Squad, Boyd Q.C., No Hiding Place, Dixon of Dock Green, Emergency-Ward 10, Softly, Softly, Paul Temple, Jason King and Bergerac. He is also known for playing Arthur Bourne on The Cedar Tree, but will be best remembered for playing Don Henderson on The Plane Makers and its sequel, The Power Game.