by the early 1960s ensor's acting career had stalled, and he entered politics. he joined the labour party and was elected at the 1964 general election as member of parliament (mp) for the marginal bury and radcliffe constituency and re-elected in 1966 election. in 1968 he indicated that he would not contest the seat again, standing down at the 1970 general election. in 1972 he joined the liberal party, but did not stand for election again.