No, assuming no part is from during your occupancy, in which case you pay your share, with an explanatory letter of why,and marking that 'in full and final settlement of my personal debt'.
Otherwise the creditor will be getting no judgment against you, since it will be against the named debtor, not you. You would be as well to tell them that the named debtor is not resident there but left long ago, it relates to them and their occupancy and the bill is theirs, not yours