Michael Caine's role in the 1966 British comedy-drama film 'Alfie' is one of his most iconic performances. He plays the title character, a womanizing Cockney chauffeur who lives life on his own terms. The film follows Alfie as he navigates through a series of relationships and experiences the consequences of his actions. The film was a critical and commercial success, earning Caine an Academy Award nomination for Best Actor.