At the beginning of the 1950s, Aidan was ranked as being one of the United Kingdom's 'Stars of Tomorrow' and continued to make a name for himself in films appearing in such features as 'Doctor In The House' (1954), 'Dark Avenger' (1955), 'Village of the Damned' (1960), 'Day The Earth Caught Fire' (1961), 'Countess from Hong Kong' (1967), 'Best House in London' (1969), 'Eagle Has Landed' (1977), 'Top Secret' (1984), 'Batman' (1989), and, in his final on screen appearance,  'The Blackheath Poisonings' (1992). He also became a household name on the small screen appearing in such syndicated British sitcoms as The Invisible Man', 'The Edgar Wallace Mysteries', 'Scotland Yard', 'Ghost Squad', 'The Prisoner', 'The Sweeney, and QB VII.