Defined as patients who 'lack decision-making capacity and a surrogate decision-maker', the unrepresented (sometimes referred to as the 'unbefriended', 'isolated patients' and/or 'patients without surrogates') present a major quandary to clinicians and ethicists, especially in handling errors made in their care. A novel concern presented in the care of the unrepresented is how to address an error when there is seemingly no one to whom it can be disclosed. Given that the number of unrepresented Americans is expected to rise in the coming decades, and some fraction of them will experience a medical error, creating protocols that answer this troubling question is of the utmost importance. This paper attempts to begin that conversation, first arguing that the precarious position of unrepresented patients, particularly in regards to errors made in their care, demands their recognition as a vulnerable patient population. Next, it asserts that the ethical obligation to disclose error still exists for the unrepresented because the moral status of error does not change with the presence or absence of surrogate decision-makers. Finally, this paper concludes that in outwardly acknowledging wrongdoing, a clinician or team leader can alleviate significant moral distress, satisfy the standards of a genuine apology, and validate the inherent and equivalent moral worth of the unrepresented patient. © Author(s) (or their employer(s)) 2019. No commercial re-use. See rights and permissions. Published by BMJ.