What would you say if you had hir in front of you?
Undoubtedly, people will wonder: Who? That's the beauty of the question. An ex-lover, a former boss, a dead friend, an estranged parent, that asshole who picked on you in 8th grade gym class, that poor kid you picked on in 8th grade gym class, a person you admire but have never met.... Who? That's up to you.
Identify hir or don't. All you've got to answer is what you'd say, given the chance.
[Thanks to Shaker Rachell for the suggestion.]