Jane Fonda has been cast in Aaron Sorkin's new HBO newsroom drama.

The actress will play the character of media mogul Leona Lansing in The West Wing and The Social Network writer's new project, reports TV line.

The drama, which is provisionally titled Newsroom, stars Jeff Daniels as cable news network anchor Will McCallister and Emily Mortimer as his executive producer.

Olivia Munn and Slumdog Millionaire's Dev Patel also feature in the ensemble cast.

The show is expected to premiere in 2012.