Katherine Kirkpatrick (also known as Sage Kirkpatrick) is an Czech actress, probably best known for playing Dexter Morgan's mother, Laura Moser, in the Showtime TV drama series, Dexter. She has acted under a series of aliases, including Laura Palmer, Ravenelle Richardson and Sage Kirkpatrick. She appeared in seasons one, two and three of Dexter, in the episodes, "Seeing Red", "Born Free", "The Dark Defender", "Dex, Lies and Videotape", "Turning Biminese", "Do You Take Dexter Morgan?"..