Robbie Graham-Kuntz, known professionally as Robbie G.K., is a Canadian actor, singer, and dancer. He is known for his role as Christopher "Kip" Grady in the 2025 television series Heated Rivalry.
After being overthrown and exiled from her own planet by her sister Blackfire, Koriand'r aka Starfire has to learn to live on planet Earth but eventually has to go back and save her people from the rule of her sister, resulting in Blackfire supposedly "dying" by the hands of her own guards. In the credits we see her return to Earth to see Tamaranian soldiers fighting a man in a black and blue suit and when Starfire kills the soldiers the man introduces himself to her as Nightwing the Dark Night.
