Mark Levin (born August 20, 1968) is an American screenwriter, film director, and television producer. He is best known as the co-creator of the Netflix animated series Big Mouth and its spin-off Human Resources. He also directed the films Little Manhattan and Nim's Island. He is married to his collaborator, the screenwriter and director Jennifer Flackett. They are the creators of The Man's Guide To Love, which began as a successful video blog offering man-to-man advice on love.