The SARS-CoV-2 (COVID-19) pandemic has placed a tremendous strain on health care providers. Although there is a burgeoning body of literature on how COVID-19 has impacted frontline health care workers (i.e., providers treating COVID-19 patients), little attention has been dedicated to second-line workers (i.e., providers treating the mental health of people impacted by COVID-19). In this article, we present findings from a thematic analysis of open-text responses (n = 136) examining how COVID-19 shaped both the well-being of second-line workers, specifically mental health providers, as well as their clinical work in the early months of the COVID-19 pandemic in the United States. Results indicated that mental health providers were experiencing significant COVID-19-related burnout and poor physical and mental health outcomes. Participants described diminished negative effects on the quality of their clinical care from the burnout and trauma associated with COVID-19. Many also demonstrated resilience, identifying the duality of both negative (e.g., exhaustion) and positive (e.g., pride in helping others) meaning derived from their second-line work experiences. We conclude with recommendations for preventing and addressing burnout among mental health professionals in the era of COVID-19 and subsequent health emergencies.