The cast of Marvel’s Ant-Man has expanded with the addition of rapper T.I., Bobby Cannavale (Boardwalk Empire), Judy Greer (Archer) and John Slattery (Mad Men), according to THR.

However, at press time, it’s unclear what the roles are for the newly added cast.

Directed by Peyton Reed, the film began principal photography this week in San Francisco. Actor Paul Rudd has been cast as title character, a superhero who can shrink while increasing in strength, Michael Douglas plays his mentor Dr. Hank Pym, and Evangeline Lilly as Pym’s daughter.

Corey Stoll (House of Cards) is also tapped as the villain Yellowjacket.

Ant-Man is scheduled for release July 2015.