In this article, the authors present a call to advocacy for an underserved population. Twice-exceptional students are an important sub-population that has historically been neglected. We examine the historical context of twice-exceptionality and evaluate the relevance of current ethical codes with regard to these students. We also review some of the specific needs and challenges faced by these students as well as current efforts to meet those needs. The needs of these students and the ability of school counselors to work with students, teachers, and educational, professional, and legal systems to meet these needs imbue educators with an ethical obligation to help these students fulfill their potential. Recent calls to action are echoed and elaborated.