Are Jennifer and Elizabeth Keen sisters?

Jennifer Reddington is the half-sister of Elizabeth Keen. Jennifer is the daughter of Raymond Reddington and Naomi Hyland.

Jennifer Reddington was killed by the Protean in season 8 after being used to lure Liz Keen into an ambush.

Elizabeth Keen was raised by Sam Milhoan. She was born in Moscow, Russia (Soviet Union) as Masha Rostova.

At the age of 4, Elizabeth Keen shot and killed her father, the real Raymond Reddington, to stop him from attacking her mother, Katarina Rostova.

Elizabeth Keen had been with the FBI for 6 years and was head of the mobile emergency psych unit in New York. She was married to Tom Keen.

“The Blacklist” is an American crime thriller television series that follows Raymond “Red” Reddington (played by James Spader), a former U.S. Navy officer turned high-profile criminal who voluntarily surrenders to the FBI after eluding capture for decades. The series was created by Jon Bokenkamp.