After two years of marriage, actor Michael C. Hall and actress Jennifer Carpenter are calling it quits, their reps confirm to Entertainment Weekly. The two star together on the hit Showtime show 'Dexter' as brother and sister.

"Having been separated for some time, Jennifer Carpenter and Michael C. Hall have filed for divorce," the reps said in a joint statement. Both reps stressed the split was amicable.

Hall, 31, and Carpenter, 31, met on the set of 'Dexter' and soon began dating. They married on December 28, 2008. Carpenter praised Hall to PEOPLE at the time, saying he is "the sexiest man alive. He's one of the best we've got. He's an incredible talent and if anyone deserves accolades, it's him."

Access Hollywood reports that Carpenter attended Sunday night's fifth season finale party in New York City alone--Hall was a no show.