All debts owed at the time you went bankrupt are included in the bankruptcy - therefore your overdraft would most definately be included in the bankruptcy.
Melanie Nicholas 28 years insolvency experience - 23 of which in the Insolvency Service - Insolvency Manager Jones Giles 01446 711780 melanienicholas@jonesgiles.co.uk
If there is any debt in a joint bank account when going bankrupt, then I beleive the the non bankrupt would be responsible for repaying any debt on that account.