The study of populism increasingly recognises how important the online environment is for the spread of populist messaging, but engages relatively weakly with how the creation, dissemination and interactivity of content across sites, platforms and networks impacts upon the very nature and characteristics of contemporary populism. This chapter argues that the development and integration of new media technologies is more than an evolution in how populist messages are disseminated. Rather, even in non-democratic systems, media actors, platforms and audiences all influence messaging, whether via conscious agency, market considerations or algorithmic affordances. This makes contemporary populist appeals subject to transnational processes of devolved co-production and dissemination amongst both core and peripheral audiences. Media actors contribute to a multifaceted and co-constitutive relationship which fundamentally influences how core messages and identities are produced. The chapter demonstrates these processes in action through three empirical case studies of transnational populist communication logics amongst a range of actors, in which normatively-driven distinctions between ‘people’ and ‘elite’ are transnationally co-produced and circulated via multiple platforms. A range of informal and affective techniques are observed, which are calibrated to emotively involve core audiences, whilst influencing wider transnational discourses