Re: Character Background Info (Dump)
Hmm... I'd say leave it out, unless it comes up! I'm halfway through my WiP and it's only just been revealed that one of the characters has a sister (she goes to visit him in hospital). There was no point in me dumping it in anywhere else and if you think about your own background you tend not to think 'I'm 25, I have a brother, I had a traumatic childhood' etc. etc. just as you say.