Abstract: In his book Lack of Character (2002 Cambridge University Press) John Doris argues that both virtue ethics and common sense or folk psychology are committed to the claim that the attribution of character to persons is predictive, explanatory, and determinative of behaviour. Doris contends however that this claim is empirically false. Citing the results of experiments in the situationist research tradition in experimental social psychology, Doris argues that it is a person’s situation, and not his or her character, that determines how a person will behave in a given situation. Doris concludes that virtue ethics in particular is in need of radical revision, since the attribution of character to persons is thereby shown to be otiose a...