Probably the most well-known Robin, Dick Grayson became Bruce Wayne's ward after his parents were killed. His background in acrobatics & gymnastics proved helpful in his training to become Robin and he eventually struck out on his own to become Nightwing. Learn more about his time as Nightwing here
Not as well-known as his predecessor, Jason Todd became the second Robin after Batman caught him trying to steal the tires off the Batmobile. This bold stunt landed him the gig for a solid 5 years before meeting an untimely end at the hands of the Joker. But who stays dead in comic books anymore? Learn more about his resurrection here
Tim Drake is the third (but not final) Robin, probably the second most well-known, and, unfortunately, the second Robin to meet a tragic end at the hands of the Joker. He's often said to be a mix of the previous two Robins. Learn more about his time spent as the third Robin here
That would be Damian Wayne, a.k.a. the "love" child of Bruce Wayne and Tahlia al Ghul, a.k.a. the Demon's Spawn. Since his grandfather, Ra's al Guhl, is the head of the world renowned League of Assassins & he was raised by his mother, Damian was a fully trained assassin by age 10. He took up the Robin mantle when Bruce Wayne went missing, with Dick Grayson taking over as Batman until they can find Bruce. Learn more about Damian's unusual upbringing here
Heck yeah there were! Carrie Kelley and Stephanie Brown are the two most notable female characters who got to wear the Robin costume. Learn more about Carrie here & more about Stephanie here