Simpsons star Jodie Foster

Jodie Foster and Anne Hathaway are set to voice characters on 'The Simpsons'.

The 'Silence of the Lambs' actress will be lend her voice to an adult version of Maggie, the youngest member of Springfield's most famous family, in an episode entitled 'Four Great Women and A Manicure'.

The programme will be aired in the US in early 2009 as part of the animated show's 20th season.

This will be the first time Maggie has properly spoken on the TV show. She previously said the word 'Daddy' in one episode - which was voiced by screen legend Elizabeth Taylor.

Anne - who is most famous for starring in Disney movies 'The Princess Diaries' and 2006 magazine-based comedy 'The Devil Wears Prada' alongside Meryl Streep - will join the cast in an episode called 'The Good, the Sad and the Drugly'.

The 25-year-old beauty will be voicing a "new, sweet and caring character" that Bart Simpson falls for, and attempts to change himself into a "good Samaritan" to woo her.

The Simpsons, created Matt Groening, follows the Simpson family - parents Homer and Marge and children Bart, Lisa and Maggie - as they lead their eventful daily lives.
Other celebrities who have voiced characters in the show include Britney Spears, Danny DeVito, Sting, Sir Paul McCartney and Christina Ricci.