Jennifer Carpenter and Michael C. Hall are calling it quits.
The Dexter stars, who play brother and sister on the Showtime series, are ending their two-year marriage, their reps tell Entertainment Weekly.
"Having been separated for some time, Jennifer Carpenter and Michael C. Hall have filed for divorce," the reps say in a joint statement.
The announcement comes just one day after Carpenter attended "Dexter's" fifth season finale party without Hall, Access Hollywood reports.
Carpenter, 31, famously stood by Hall's side during his battle with Hodgkin's lymphoma.
Read the rest of the People story here .