Douglas "Doug" Petrie is an American screenwriter, director, and producer. Best known as a writer, director, and co-executive producer on Buffy the Vampire Slayer. He co-wrote the screenplays for the Fantastic Four film and Harriet the Spy. He has also written for the television shows Angel, The 4400, Tru Calling and American Horror Story: Coven. He served as a co-executive producer and writer for two seasons on and as a consulting producer and writer on the second season of Pushing Daisies. He made a cameo on Joss Whedon's web-based film, Dr. Horrible's Sing-Along Blog, as "Professor Normal". He served as co-executive producer on the first season of the Netflix show Daredevil, and has been named show runner for its second season alongside Marco Ramirez.