Morell continued to appear in Hammer's horror films in the ensuing decade. He had parts in the Shadow of the Cat (1960), She (1964, again with Peter Cushing) and its sequel The Vengeance of She (1967), the lead in The Plague of the Zombies (1965), and The Mummy's Shroud (1966). He also starred with Cushing in Hammer's Cash on Demand, playing the same role he had played opposite Richard Vernon in the original TV play, The Gold Inside, but turned down the opportunity of reprising the title role in Hammer's feature film adaptation of Quatermass and the Pit (1967).