Former Buffy The Vampire Slayer star Clare Kramer has given birth to her fourth child. The actress and her husband Brian Keathley welcomed son Sky LynLee on 11 December (13). Kramer posted a photo of her newborn alongside daughters Gavin and River and 19-month-old son Hart on Wednesday (11Dec13), along with the caption, "Meet my new little man! He joined our gang at 8:13am this morning, right in time for the holidays!" Kramer and Keathley married in 2005, and founded entertainment website GeekNation in 2012. Little Sky's middle name is a tribute to Keathley's sister, who passed away in September (13).