Jean Isabel Smith (born September 7, 1957), credited professionally as J. Smith-Cameron, is an American actress. She spent a majority of her career in theatre but began transitioning to film and television later in life. She is known for her supporting roles as Janet Talbot on the television series Rectify and Gerri Kellman on the HBO series Succession. For the latter, she received a nomination for the Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series in 2022.

Filmography