Just remembered another famous person with dual nationality: Mike Myers.
"Though Myers is Canadian by birth, his parents are natives of Liverpool, England, and Myers holds dual nationality. Although the [Austin Powers] films parody the plots and characters of 1960s spy movies and the Swinging London fashion scene of the era, the humour is influenced by Myers's British heritage, particularly the Carry On films and the comedic works of Benny Hill and Peter Sellers, the latter of whom Myers is a self confessed fan (his favourite films being the Bond spoof Casino Royale and The Party).
'Austin Powers is everything I watched (on TV in the late sixties). My parents were from Liverpool, and there's no one more English than an Englishman who no longer lives there. Every molecule of British culture that came across the Atlantic was tasted and worshipped.'"