Mary McDonnell Joins 'Scream 4'

"Battlestar Galactica" president Mary McDonnell is the latest actress to join the cast of Wes Craven's "Scream 4," Dimension Films has confirmed to TheWrap.

It's still unclear who McDonnell will be playing.

McDonnell will next be seen playing Kevin Spacey's wife in the Wall Street thriller "Margin Call."

Production on "Scream 4" is currently under way in Michigan. The film is set to carve up the box office on April 15, 2011.

Source: TheWrap