Which  American actress and comedian was Carrie Kemper sister
Ellie Kemper Elizabeth Claire Kemper (born May 2, 1980) is an American actress and comedian. She gained prominence when she starred in the NBC series "The Office" as receptionist Erin Hannon for the final five seasons. After her role in "The Office", she was cast in a leading role as Kimmy Schmidt in the Netflix comedy series "Unbreakable Kimmy Schmidt", for which she has received critical acclaim. Kemper is also known for her supporting roles in the films "Bridesmaids" (2011) and "21 Jump Street" (2012).
Joan Rivers Joan Alexandra Molinsky (June 8, 1933 – September 4, 2014), widely known as Joan Rivers, was an American comedian, actress, writer, producer, and television host. She was noted for her often controversial comedic persona—alternatingly self-deprecating or sharply acerbic, especially toward celebrities and politicians.