Mark Ross Clark is a Professor Emeritus of music and theatre and director of opera for many years, including Indiana University Opera Theatre, the University of Washington, and the University of Louisiana.

As an Associate Professor of Music at Indiana University, he directed the graduate opera workshop program and directed and produced over thirty operas. His former students in workshop in the ten years teaching at IU include Larry Brownlee, Jaimie Barton, Kyle Ketelsen and Ailyn Perez.

Clark is an award winning stage director of opera, operetta and musicals, and has presented international workshops for university and conservatory students each year for over twenty-five years, directing productions in the UK, Italy, Brazil and Taiwan. He has published four books for young singing actors (Indiana University Press and Oxford University Press).

He began his career as a singer-actor, performing as soloist with symphonies and opera companies, including three years in the Stadttheater Giessen in Germany.

He is certified in teaching the Alexander Technique. His mentors in singing and directing were Giorgio Tozzi and Wesley Balk. He studied with Paul Schilhovsky at the Mozarteum in Salzburg, and coached French melodie with Gerard Souzay in Paris.