What are the actual names of crime-fighters Batman and Robin?

Behind the iconic cowl of Gotham's dark knight is the city's most famous son, a billionaire industrialist and philanthropist. After witnessing the murder of his parents as a child, this wealthy playboy dedicated his life and vast fortune to waging a one-man war on crime. He adopted the persona of a bat to strike fear into the hearts of criminals, becoming the legendary protector (Review) of his city.

He didn't fight alone for long. He soon took in a young ward, a skilled circus acrobat who had also just lost his parents to criminals. Seeing a reflection of his own trauma, the billionaire gave the boy an outlet for his grief and a path to justice. As the junior partner of the Dynamic Duo, this young man became the very first Boy Wonder, a colorful and acrobatic counterpoint to his mentor's dark and brooding style.

While these secret identities have been the bedrock of the characters since their earliest appearances in the 1940s, the mantle of Robin has since been passed down. The original Boy Wonder eventually grew up and forged his own heroic identity as Nightwing, allowing others to take on the role of Batman's sidekick. This classic pairing, however, remains the most famous and has been featured in numerous films, television shows, and comics for decades.