 Following this success , Kneale gave up acting to write full @-@ time . He did take small voice @-@ over roles in some of his 1950s television productions , such as the voice heard on the factory loudspeaker system in Quatermass II ( 1955 ) , for which he also narrated most of the recaps shown at the beginning of each episode . Kneale 's publisher was keen for him to write a novel , but Kneale himself was more interested in writing for television . A keen cinema @-@ goer , he believed that the audience being able to see human faces was an important factor in storytelling . 
