The Fisher-Duddy brood has expanded again with the adoption of Olivia Luna, Joely Fisher‘s rep tells PEOPLE exclusively. Olivia was born recently, weighing in at 7 ½ lbs and is 19 ½ inches long. She joins sisters Skylar Grace, 7, and True Harlow, 2 ½, as well as brothers Collin, 20, and Cameron, 22, from husband Christopher Duddy‘s first marriage. Joely’s rep tells PEOPLE,
"They are all blissfully happy and enjoying their new baby sister."
Out of respect for the birth mother, the family will be keeping other details private. Joely, 40, and Christopher, a cinematographer, have been married nearly 12 years. Joely currently stars on ‘Til Death, airing Wednesdays at 9 p.m. on FOX.