‘Downton Abbey’ finally makes Bonneville a star  Hugh Bonneville
(front, right) is shown here with his fellow "Downton Abbey"
cast members. The series returns to PBS for its third season on
Jan. 6. Hugh Bonneville (front, right) is shown here with his
fellow "Downton Abbey" cast members. The series returns to PBS
for its third season on Jan. 6. Courtesy Carnival Film &
Television Limited/MCT  You could never tell by looking at this
dapper Englishman who plays the stalwart Earl of Grantham on
"Downton Abbey," but when he was 7 years old Hugh Bonneville
hurled a sledgehammer through the family's kitchen window.  It
was not indicative of things to come, Bonneville insists. "I'm
not prone to temper tantrums. I used to be a bad sulker. We're
not a shouty family, and nowadays I can forgive but I don't
forget," he says. "I'm a Scorpio. If you have a go at a Scorpio
they can get you back sometime," he laughs, easing into a wing-
chair in a hotel meeting room here.  The occasion of the
sledgehammer was prompted by his