Dick Grayson/ Robin 1

Dick Grayson Is Robin the first Boy Wonder who would grow up to become Nightwing

Childhood=robin(as in the circus)
Robin grew up in the Hayes family circus.One day he saw Tony Zuco threaten his father into paying protection money. When his dad refused Dick called the cops. Batman intercepted the call and arrested one of Zuco's brothers. In revenge Zuco killed Dick's parents. Batman took Dick in as a foster son. Later As Batman searched for Zuco Dick caught on and Batman let him join him.

Nightwing
==Season Four==

Robin's future self appeared twice, once as a video game character, second in a future episode

Starfire
Starfire is an alien from the planet tameran. She was Dick's girlfriend and fiance on Dick's team of teenage superhero's called the Teeen Titans. It is unknown if the titans were formed in this universe.

Batgirl/Oracle
Batgirl is Robin's friend/sister figure. It is unknown if they date later.