Nightwing
Nightwing is a fictional superhero appearing in American comic books published by DC Comics. The character has appeared in various incarnations, with the Nightwing identity most prominently being adopted by Dick Grayson when he moved on from his role as Batman's vigilante partner Robin.
Professor Night
Professor Night and Supreme have long enjoyed a professional partnership and are also close friends, fully aware of each other's secret identity. When visiting the Prism World of Amalynth, Supreme sometimes takes the Professor Night-inspired identity of Doctor Dark (a reference to Superman's Batman-like identity of Nightwing). If accompanied by a partner, such as Diana Dane, Supreme assigns them the Twilight-inspired identity of Duskwing (referring to the Robin-like identity of Flamebird)