“The Birds” actress Tippi Hedren was reportedly diagnosed with dementia. A representative for the actress reportedly confirmed her diagnosis, saying she "can't remember her career." After her movie career ended, she became an animal rights activist. She’s also the matriarch of a great acting dynasty. Her daughter, Melanie Griffith, starred in the 1988 film “Working Girl.” Her granddaughter, Dakota Johnson, just hosted “Saturday Night Live.”