Actor Adam Driver has emerged as the frontrunner to play Robin to Ben Affleck's Batman in the Man Of Steel sequel.
The Girls star is currently in talks to take on the role of Dick Grayson, aka Nightwing, according to The Wrap.com.
According to Batman myth, Grayson, who is better known as Robin, adopted the identity Nightwing after growing out of his other alter-ego, aged 18.
Bosses at Warner Bros. studio are also currently searching for the female lead in the film with Olga Kurylenko, Gal Gadot and Elodie Yung emerging as the top actresses to portray Wonder Woman and her alter-ego Diana Prince.
Batman vs. Superman, which also stars Henry Cavill, is set to hit theatres in 2015.