Informal political representation can be a political lifeline, particularly for oppressed and marginalized groups. Such representation can give these groups some say, however mediate, partial, and imperfect, in how things go for them. Coeval with the political goods such representation offers these groups are its particular dangers to them. Mindful of these dangers, skeptics challenge the practice for being, inter alia, unaccountable, unauthorized, inegalitarian, and oppressive. These challenges provide strong pro tanto reasons to think the practice morally impermissible. This paper (...) considers the question: On what conditions is the informal political representation of oppressed and marginalized groups permissible? By responding to skeptics’ challenges, I develop a systematic account of moral constraints that, if adopted, would make such representation permissible. The account that emerges shows that informal political representatives (IPRs) must aim to fulfill two sets of sometimes conflicting duties to the represented: democracy within duties, which concern how the representative treats and relates to the represented, and justice without duties, which concern how the representative’s actions advance the aims of the representation. (shrink)