Abigail Chay (born Caesar Chay Tuck Kwong, 1959) is a Singaporean transgender personality, actress and comedienne. Born male in a traditional Christian family, Chay underwent sex reassignment surgery at the age of 22 years after coming out to her parents. Chay is best remembered for her role as Aunty Abigail in the Channel 5 sitcom Under One Roof. Her first known role however, was a cameo in Money No Enough. Although she was not signed to Jack Neo's JTeam label, Chay appeared frequently in his films. Chay also hosts corporate Dinner-and-Dances frequently, and has taught speech and drama classes for children.