Views on what is important in training for psychologists are evolving, reflecting a broadening understanding of the role psychologists can and should play in societal change. Since the development of the scientist-practitioner model after World War II, arguments around training have focused on the appropriate balance between training in the practice of psychology versus training in research related to psychology. Recent calls reflect more radical change to include an advocacy emphasis within the formal coursework of psychology doctoral programs, well articulated by Mallinckrodt, Miles, and Levy (2014) as the tripartite model of Scientist-Practitioner-Advocate. In this paper, we present the argument for expanding a model that incorporates advocacy training into clinical psychology internships and postdoctoral programs and describe why we believe voices for advocacy have been largely silent in public-sector clinical psychology training and practices. We outline how this may be accomplished in public sector training settings, and we articulate a call to action for public servants to speak out so their voice can ignite a passion for advocacy within public sector psychology service and training. (PsycInfo Database Record (c) 2020 APA, all rights reserved).