According to Variety, the newly confirmed Gordon-Levitt will play the gangster Alberto Falcone, known in the comics for being the so-called Holiday Killer.
The character is the son of Mafia crime boss Carmine Falcone, portrayed in Batman Begins by the English actor Tom Wilkinson.
Speculation about Gordon-Levitt's involvement with the project has been growing ever since the actor starred in Nolan's last film, Inception.
It was previously suggested that Gordon-Levitt could play Batman villain The Riddler, in addition to rumours that Nolan wanted him for the role of the assassin Deadshot.
Warner Bros has so far declined to comment on the reports of Gordon-Levitt's role in the film.
The Dark Knight Rises is due to be released in cinemas on July 20, 2012.
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