Born in Detroit, Michigan, Marshall moved with his family to the North West Frontier Province of Pakistan where he was raised in the city of Peshawar until the 1971 Indo-Pakistani war. He and his family then relocated to the United States.
Marshall studied Acting at R.A.D.A. (The Royal Academy of Dramatic Art, in London, England.)
He is most noted for his Voice Over work for The Discovery Channel series "I Shouldn't Be Alive". Moreover, he was an actor in educational videos accompanying a series of books aimed at studying English called 'New English File.'
- Lentz, Harris M. (2001). Science Fiction, Horror & Fantasy Film and Television Credits: Television shows. McFarland. p. 1777. ISBN 978-0-7864-0952-5. Retrieved 9 June 2011.
- Jenkins, Jeffrey Eric (2009-08-15). The Best Plays Theater Yearbook 2007-2008. Limelight Editions. p. 404. ISBN 978-0-87910-366-8. Retrieved 9 June 2011.
- Morley, Sheridan (2 May 2001). "LONDON THEATER : 'Odd Couple':The Female Version". New York Times. Retrieved 9 June 2011.