Many interdisciplinary discussions seem to operate on a tacit assumption that the notions of character and personality can be used interchangeably. In order to argue that such an assumption is at least partly erroneous, the character-personality distinction drawn in various contexts is systematically scrutinized both in an historical and conceptual way. Then, in turn, two particular issues are addressed. The character-personality distinction is shown to be reliant on the dichotomy between value and fact, respectively, and to have a considerable functional dimension with some of the functions fulfilled by the notion of character (but not by that one of personality). The outcomes achieved, finally, are referred to the subtle differences between the fact-value distinction and the Humean is-ought dichotomy.