Dominic Purcell by Patrick Ecclesine/Fox
and his wife Rebecca Williamson have separated, Purcell's rep told
The couple have four children: Joseph, 8, Audrey, 6, and twins Lily-Rose and Augustus, 4. Based in Los Angeles, the family traveled with Purcell to the Chicago location where
is filmed. Purcell, an English native, was raised in Australia.
"The separation is completely amicable and they remain friends," his rep added.
In addition to starring in the Fox series, Purcell will star in the upcoming Joel Schumacher film
Click here to watch TVGuide.com managing editor Matt Webb Mitovich's video interview with Dominic Purcell.