Which actor played Vito Corleone in 'The Godfather'?

Marlon Brando played Vito Corleone in 'The Godfather' (1972), a role for which he won his second Oscar, although he rejected it as a protest against the treatment of Native Americans in Hollywood. Robert De Niro played young Vito Corleone in 'The Godfather II' (1974), winning the Oscar for Best Supporting Actor.