Objectives: During an increasingly hostile social and political climate for ethnic-racial minorities, psychologists have begun to question the extent to which Indigenous People and People of Color (IPPOC) see one another as in the same boat (Rivas-Drake & Bañales, 2018). Consequently, the present mixed-methods study examines allyship as a potential politicized collective identity and its associations with ethnic identity, personality traits, and political engagement among IPPOC. Method: The present study was conducted across two samples in August 2016 (n = 256) and 2017 (n = 305). Participants were administered a questionnaire including measures of ally identity, ethnic identity, personality traits, and quantitative and qualitative measures of political engagement. Results: EFA and CFA findings suggest a two- factor solution for ally identity (ally beliefs and behaviors). For Sample 1, findings from the path analysis suggest 1) ethnic identity exploration predicts ally beliefs and behaviors (Model 1), 2) extraversion predicts ally behaviors, while agreeableness and neuroticism predicts ally beliefs (Model 2), and 3) ally beliefs and behaviors predict awareness, while ethnic identity exploration predicts involvement in political action (Model 3), even when personality traits are considered (Model 4). For Sample 2, findings were similar with some notable variations. Thematic analysis findings suggest IPPOC are politically engaged through social media, individual actions, protests, and civic engagement. Conclusions: There is no one pathway to sociopolitical engagement, as elements of ethnic and ally identity provide different paths to sociopolitical awareness and involvement, with ethnic identity exploration being a particularly powerful mechanism for allyship and sociopolitical action.