People Exclusive

Rachel Griffiths Is Pregnant

Friday January 16, 2009 07:55 PM EST

Rachel Griffiths

Lester Cohen/WireImage

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Rachel Griffiths, who stars on ABC's Brothers & Sisters, is adding another baby to her brood: The mother of two is pregnant with her third child, her rep tells PEOPLE exclusively.

The Australian-born actress, 40, and her husband, Andrew Taylor, are also parents to daughter Adelaide Rose, 3, and 5-year-old son Banjo Patrick, who is named for Australian poet Andrew Barton "Banjo" Paterson. – Blaine Zuckerman