TK is a native of Tidewater, Virginia, and the proud son of a distinguished naval officer. An alumnus of Penn’s Wharton School, he is a former management professional in the financial industry. He left the corporate world to pursue a career as an author of historical fiction. He resides in southeastern Pennsylvania.

Marion involves himself in much community service. He sits on the board of directors of the National Alliance on Mental illness (NAMI), and is the President/CEO of the Thirteen Stars Foundation™, which is dedicated to giving scholarships to persons with cystic fibrosis. (Partial proceeds from novels authored by T. K. Marion subsidize the foundation.) and Author for a Cause™
that raises fund for numerous non-profits in the areas of education, literacy, and veterans organizations.

TK is a former radio show host and has been featured on television and radio talk shows, as well as print articles.

(He lives with bipolar disorder, a chronic mental disease.)