Brad Pitt impersonated Anthony Fauci, the director of the National Institute of Allergy and Infectious Diseases, in the latest episode of NBC’s “Saturday Night Live at Home.” Pitt, whom Fauci previously mentioned as his pick to portray him in a “Saturday Night Live” skit, opened the show by noting that “there’s been a lot of misinformation out there about the virus.” “And yes, the president has taken some liberties with our guidelines.