Nightwing
Although Nightwing is commonly associated with Batman, the title and concept have origins in classic Superman stories. The original Nightwing in DC Comics was an identity assumed by alien superhero Superman when stranded on the Kryptonian city of Kandor with his pal Jimmy Olsen. Drawing inspiration from Batman and Robin, the two protect Kandor as the superheroes Nightwing and Flamebird. Following the Crisis on Infinite Earths continuity reboot in 1985, Nightwing was re-imagined as a legendary vigilante from Krypton whose story inspires Dick Grayson's choice of name when he leaves behind his Robin identity.
Nightrider (DC Comics)
Nightrider and his teammates Killowat (Charlie Watkins), Terra (Tara Markov), Mirage (Miriam Delgado),and Redwing (Carrie Levine) were selected by the leader of Team Titans to be sent back in time. They were later followed by Nightwing (Dick Grayson) and Battalion (Alexander Lyons). Their mission was to kill Wonder Girl (Donna Troy) before she could give birth to Lord Chaos.