Jesse Williams of 'Grey's Anatomy' headed for divorce

April 25 (UPI) -- Grey's Anatomy star Jesse Williams is headed for divorce.

The 35-year-old actor filed for divorce from wife Aryn Drake-Lee on April 11 after more than four years of marriage, according to People.

TheJasmineBRAND.com reported Williams cited "irreconcilable differences" for the split, although the divorce is said to be amicable. The couple, who share 3-year-old daughter Sadie and 18-month-old son Maceo, reportedly wanted to keep their divorce quiet.

"They're trying to keep their split top secret and away from the public," a source said. "They've actually been separated for a while now."

Williams and Drake-Lee married in September 2012 after more than five years of dating. The pair first met while Williams was working as a teacher in New York.

"She's been with me through all different facets of my career," the actor told USA Today in 2010. "She's stuck with me through thick and thin and thick and thin. We know each other in and out."

Williams joined Grey's Anatomy as Dr. Jackson Avery in Season 6 and was made a series regular in Season 7. The show co-stars Ellen Pompeo, Justin Chambers and Chandra Wilson, and airs Thursdays on ABC.