Robin Williams

Robin Williams was an American comedian and actor whose manic improvisational comedy was matched by his ability to play menacing, precise dramatic roles — most notably in Nolan's 'Insomnia', Fincher's 'One Hour Photo', and Van Sant's 'Good Will Hunting'.

Williams's Walter Finch in 'Insomnia' — a thriller writer who commits a murder with a writer's precise understanding of how police investigations work — is the definitive example of Williams's still, controlled dramatic register, demonstrating the danger of intelligence without conscience.