In the 2020 US presidential election, Misha Collins, star of the show Supernatural, endorsed Joe Biden for president and worked to support Biden’s campaign through interviews with campaign surrogates on Instagram Live and by phone banking on Zoom. In this study, we examine how fans made sense of Misha’s political action. While the political science and advertising literature on celebrity endorsements evaluates endorsements by the number of votes earned, we found that fans’ experience of Misha’s political advocacy was far more complicated than that. Our interviews with fans suggest that fans were ambivalent about Misha’s endorsements but enthusiastic about how Misha went about doing politics. Fans described a civic culture they co-constituted with Misha, defined by accepting and caring for other people, being authentic and genuine, and respecting disagreements. Fans described how these values were enacted both inside the fandom (in discussions of LGBTQ representation) and outside the fandom (in the 2020 US presidential election). Ultimately, fandom should be read as an important site of civic culture building—with implications for how fan cultures influence contemporary notions of citizenship, civic values, and political outcomes.