His films included A Night to Remember (1958), Village of the Damned (1960), Billy Budd (1962), A Man for All Seasons (1966), Night of the Big Heat (1967) and Quatermass and the Pit (1967).
On television he had notable guest roles in Dixon of Dock Green, The Prisoner, Z-Cars, The Onedin Line and Crossroads.
Heathcote was also a regular actor in BBC radio drama, notably in several series of Paul Temple.