Dissenters fostering changes across the world are often perceived as troublemakers and often pay a high price for their behavior – even when formally protected by legal rules. I want to tell a story of dissenters as important catalysts of societal changes. Societies require consensus as well as dissent, but the concept and characteristics of the latter are under-investigated. My overall aim is to illuminate the attributes, dynamics, and reactions to dissent. The theme has gained relevance in times of polarization due to new digital technologies, which are changing dissent, people’s interactions, and governance. The investigation examines exemplary cases in the light of one another, literature, and includes the treatment of cases under diverse regulatory models. Future works will be able to compare how institutions stifle or protect dissent, and secure or deny access to justice to dissenters.