Sandy Martin began her acting career at the age of 15 touring the country with Martha Raye in Good-bye Charley. After several East Coast touring productions she settled in New York City. Martin began working in many of New York City's esteemed theatres: Lincoln Center, La Mama, Ensemble Studio Theatre, Playwrights Horizon, The American Place Theatre acting in over 70 stage productions.

After their enormous hit with the stage play, Hothouse by Megan Terry, Sandy wrote the screen adaptation which she packaged with her good friends, Amy Madigan and Ed Harris, both whom she acted with in the award winning world premiere of, Prairie Avenue by Edward Allen Baker, both in New York City. (at Est.) & Los Angeles's Callboard Theatre.