Michael N. Grossman is an American film and television director. He has directed a number of episodes from dozens of different television series, including Grey's Anatomy and the backdoor pilot of its spin-off, Private Practice. His other directorial work includes the series Charmed, Zoey 101, Angel, The Invisible Man, Arli$$, Firefly, Star Trek: Enterprise, Earth 2, Buffy the Vampire Slayer, Gilmore Girls, Drop Dead Diva, Manhattan, AZ, One Tree Hill, Las Vegas, Eureka, Dirty Sexy Money, Nashville and Pretty Little Liars. Prior to working in television, Grossman was an assistant director on the films Hide and Go Shriek and Teenage Mutant Ninja Turtles. He also directed the television films Merry Christmas, Drake & Josh and Starstruck.