Kathryn Grant studied acting at the Juilliard School and pursued a career in the theater, acting in over 100 plays in New York and around the country. She began writing as a member of the American Renaissance Theater workshop where artists are encouraged to explore all areas in the theater. Her first full-length play, The Wound of Love, received the Berilla Kerr Award in playwriting and went on to full productions at the Actors Studio, Penguin Repertory Theater, the John Houseman Studio Theater and Provincetown Repertory Theater. Alvin Klein writing for the New York Times said of her work, "She writes with astounding tenderness ... I wouldn't trade her flair for a first encounter. Not for the whole real world on a plate." Her play, Wonderful Counselor was presented in developmental workshops and readings at the Barrow Group Theater, Ensemble Studio Theater, Urban Stages, The Actors Studio Playwright and Director's Unit, the Abingdon Theater and LAByrinth Theater's Summer Intensive. Revised and retitled as The Good Counselor, it garnered The Jerry Kaufman Award in Playwriting and The 2010 Premiere Stages Festival Award. In the summer of 2010, John Wooten directed a full production of this play as part of the Premiere Stages season. She consequently won a 2011 citation from The Harold and Mimi Steinberg/ATCA New Play Award for the same play. Her play Handicapped People in Their Formal Attire received a workshop production at the Actor’s Studio and received a full production at Premiere Stages as part of winning the 2012 Premiere Stages Festival Award.

Other plays include The Alabaster Virgin, The Khmer Shiva, Alijah and The House of Piñatas. They have been featured in Ensemble Theater's Octoberfest, the Actors Studio Playwright and Director's Unit and the American Renaissance Theater's Spring Series. Her screenplay, The Practice Room is in development. She received her Doctorate in the writing program at Drew University. She teaches acting and writing for performance at St. Francis College and for Broadway Teachers Workshop and Broadway Student Summit. She served on the Board of the American Renaissance Theater Company and currently heads the admission committee for the Actors Studio Playwright and Director’s Unit. She lives in Manhattan with her husband, actor and director, Ed Setrakian. Her son, musician Ilya Setrakian is a rising talent currently working out of Philadelphia.