Extant theories posit that political conflict affords favorable circumstances for successful party building. However, crises do not necessarily engender the emergence of new parties with the capacity to integrate discontent. In this in-depth analysis of Chile, we show how lowering barriers to entry inadvertently precluded the development of a national political organization. We describe the nature of new political actors who emerged from the cycle of protest that erupted in October 2019. Our analysis shows that the traits of the umbrellas of lists of independents conditioned the ability of emerging actors to aggregate demands of different districts. The Chilean case illustrates how a cycle of protest can engender new, electorally successful political actors but does not assure these actors’ capacity to legitimate the political process.