The production notes for Wrath of the Titans, in which Neeson will star as Zeus, confirm that the actor will make a cameo in Christopher Nolan's third and final Batman film.
"Neeson next appears in Peter Berg's actioner Battleship, and he also will be seen in Christopher Nolan's much-anticipated action thriller The Dark Knight Rises," the notes read.
Neeson portrayed Ra's Al Ghul in 2005's Batman Begins. The extent of his Dark Knight Rises role has not been revealed, though it is known that Josh Pence will play a younger version of the character in a flashback.
Christian Bale, Michael Caine, Gary Oldman, Tom Hardy, Anne Hathaway, Joseph Gordon-Levitt and Marion Cotillard lead an ensemble cast in the movie.
The Dark Knight Rises will arrive in cinemas on July 20, 2012.
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Watch a trailer for The Dark Knight Rises below: