Somers married Jack Klugman in 1953 and went by the name Brett Somers Klugman afterward, until the couple parted ways. They had two children, David Klugman and Adam Klugman. She appeared on several episodes of The Odd Couple (1970), playing "Blanche", the ex-wife of real-life husband Klugman's character, "Oscar Madison". The couple legally separated in 1974 but reportedly never divorced. In 2008, a year after after Somers' death, Klugman married his long-time girlfriend, Peggy Crosby.