Mark Steen is a writer for television. He began his career as a production assistant, on All Commercials...A Steve Martin Special, Dead Men Don't Wear Plaid and All of Me.
Steen soon began a short-lived acting career, appearing on George Burns Comedy Week, You Again?, L.A. Story, Father of the Bride, In Living Color and Hot Shots! Part Deux.
Later, he started writing for television, focusing on animation: Aaahh!!! Real Monsters, The Wild Thornberrys, Dilbert and Teacher's Pet.
Steen has not been involved in the entertainment industry since writing his Teacher's Pet episode.