Pregnancy has turned Rachel Griffiths into the nicest star in Hollywood - so much so the cast of her TV show are begging her never to give birth.

The Brothers & Sisters actress is currently expecting her third child with husband Andrew Taylor; a little brother or sister for Banjo, five and Adelaide, three.

And she reveals the pregnancy has changed her entire personality, telling Us Weekly, "Apparently I'm really nice pregnant. The wardrobe department begged me never to have this baby. They said, 'We love you pregnant; you're so much nicer.' Maybe I'm less hormonal."

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(This news article provided by World Entertainment News Network)