James BOND, also known by his serial number 007, is a fictional character created in 1953 by the British writer and former spy Ian FLEMING in the novel Casino Royale. Twelve novels and two collections of short stories were published by Ian FLEMING from 1953 until his death in 1964.
The film adaptations began in 1962, with the official adaptations produced by "EON Productions". Historically, the actors in the official adaptations have the nationality of a country that was part of the British Empire.
You can consult the Wikipedia files on Ian FLEMING in English and French versions.

You will find the list of actors of the official adaptations below:

first name name nationality nb films start end
Sean CONNERY Scotland 6 1962 1971
George LAZENBY Australia 1 1969 1969
Roger MOORE England 7 1973 1985
Timothy DALTON Wales 2 1986 1990
Pierce BROSNAN Ireland 4 1995 2002
Daniel CRAIG England 5 2006

And the actors of the unofficial adaptations:

first name name nationality nb films start end
Barry NELSON USA 1 1954 1954
David NIVEN England 1 1967 1967
Sean CONNERY Scotland 1 1983 1983

James BOND marries only once in the sixth film in the series (Her Majesty's Secret Service), the only film in which the role is played by George LAZENBY.