Born in the Moravian town of Kroměříž and trained on Viennese stages from 1921, Miller built a career that spanned theatre, film and television after fleeing to London in 1939. He co-founded the émigré cabaret Das Laterndl, earned acclaim for satirical Hitler impersonations, and became a regular presence in London’s West End, notably as Dr Einstein in Arsenic and Old Lace and as Mr Paravicini in T…