Leary is said to be in negotiations to play Police Captain George Stacy, father to Peter Parker’s love interest, Gwen Stacy (to be played in the film by Emma Stone).
Captain Stacy was played in 2007′s Spider-Man 3 by James Cromwell. In the comic book continuity, Stacy loses his life during a battle between Spider-Man and Doctor Octopus. Not knowing that he and Peter are the same person, Gwen blames Spider-Man for the tragedy.
Leary also joins Andrew Garfield as Peter, Martin Sheen as Ben Parker and Rhys Ifans in an unspecified villian role.
Spider-Man is slated to hit theaters on July 3, 2012.