John Blake

"You gotta learn to hide the anger, practice smiling in the mirror. It's like putting on a mask."

- Blake to Bruce Wayne

Robin John Blake was a detective working for the Gotham City Police Department who became a trusted ally to Batman during Bane's reign of terror. After the presumed death of Batman, he resigned from the GCPD and inherited the Batcave after receiving the coordinates from Batman. He was portrayed by Joseph Gordon-Levitt in The Dark Knight Rises.

The Dark Knight Rises
During his childhood, Blake's mother died when he was at a young age and later on, his father died when he was nine. With that, he then lived in Gotham City's orphanage. He created a mask for himself by hiding his anger behind a smile. He also idolized Batman, and deduced that Bruce Wayne was the caped crusader when he sees the similar attempt at hiding his anger when the playboy billionaire visited the orphanage.

Eight years after the death of Harvey Dent, Blake subtly asked Commissioner Gordon about the truth behind Dent's death, but the Commisioner refused to answer. After investigating the sewers of Gotham for suspicious activities happening inside, Blake confronted Wayne, and revealed he knew that he was Batman. Blake asked Wayne to return as Batman, which inspired the latter to do so. After Gordon was hospitalized by Bane and his men, Blake was promoted to detective, allowing him to report directly back to Gordon. Blake was present at Bane's attack on the stock market and witnessed Batman's return. Investigating more into Bane's plans, Blake realized that multiple construction workers were hired to supply explosive chemicals, which are incorporated into bombs set up around Gotham to trap officers searching the sewers. Blake's car was victim to one of the explosives, but he survived and rushed to save Gordon, who was about to be assassinated by Bane's men. However, Gordon managed to kill the men before Blake arrived. The two escaped and went into hiding as Bane convinced the lower classes of Gotham to rebel against the law and rich. Blake intercepted Selina Kyle's attempt at escaping Gotham and questioned her on Bruce's fate, though the cat burglar was unsure about it, and Blake arrested her, putting her into Blackgate Prison. Bane escalated the situation when he publicly read Gordon's speech revealing the truth about Harvey Dent's death, and freed all the prisoners in Blackgate, putting all of Gotham into chaos and exiled from the rest of the country.

Blake joined Gordon and his regime of remaining police officers to overthrow Bane and his men to regain control of the city. The plan failed as Gordon and several other men are sentenced to walk on a thin layer of ice. In the commotion, Blake attempted to free the trapped officers underground, but was caught. As he was about to be executed, Batman arrived and saved him, tasking him with evacuating the city as much as he could. As Batman and his army of cops fought Bane and his men, Blake lead the evacuation with the help of his fellow orphans from the orphanage. However, the military blocked the only intact bridge and refused entry to Blake, fearing that Bane would detonate a nuclear bomb. When Blake refused to stop walking towards them, the military blew up a part of the bridge, permanently trapping them. However, Batman used the Bat to carry the bomb overseas where it exploded harmlessly over the bay. Blake and the orphans realized Batman had apparently died in doing so, and mourned his death.

The orphanage moved to a new location; Wayne Manor. Blake received his own inheritance from Bruce, under his birth-name: Robin. When he visited the coordinates he was provided, Blake found himself in the Batcave.

Trivia

 * Before the film's official release, there was much speculation that the character would be Christopher Nolan's interpretation/re-imagining of Robin. This was confirmed when Blake revealed that his legal name is Robin, and discovered the location of the Batcave at the end of the film, indicating that he will become a masked vigilante and replace Batman as the protector of Gotham City.
 * Blake seems to be a combination of the first three Robin characters in the comics. Like both Dick Grayson and Jason Todd, he is an orphan who suffered the loss of both his parents at a young age. Also like Grayson, Blake joined the Gotham City Police Department, eventually being promoted to detective, and seems destined to take over the mantle of Batman. Much like Todd, he is an angry young man who first met Bruce Wayne near the latter's car, and like Tim Drake, he discovers that Bruce Wayne is Batman on his own.
 * He is the second incarnation of Robin to bear the name as his real name rather than an alias like most versions, the first being the Robin of the 2006 comic book limited series Batman: Year 100.
 * Before he was revealed as Robin, Blake was rumoured to be a number of characters including the Riddler, the Joker (due to his resemblance to Heath Ledger), Alberto Falcone, Black Mask and Azrael.