This paper explores medial relationships actualized by various media representations of DC Comics’ famous supervillain, the Joker. A recurring trope in Joker narratives, going back to his very first appearance in DC Comics Batman #1 (1940), involves him using media to spread his brand of terror across Gotham City. While the previous research on the Joker has sometimes noted the character’s transmedial travels, none has dealt extensively with the recurring placement of him in relation to specific media technologies and formats. Further, as such the character is an exemplary case for contributing to the contemporary discourse on intermediality. The present paper argues that the Joker exemplifies how intermedial references (c.f. Rajewsky, 2005) can simultaneously cue a sense of immersion and have a destabilizing effect on the actual experience of spectatorship. The analyses put emphasis on moments of what Tina Kendall (2010) has called “a spatial and temporal layering of representational forms” (190), which here specifically refers to moments when the Joker is represented on, in, or alongside television.