Sepehr Haddad is an author and recording artist. His latest historical fiction novel, "The Harmless Necessary Cat," is a World War II Family Saga set in Allied-occupied Iran. The book is the #1 Amazon Bestseller in the History of Iran. It has been awarded the 2024 E.M. Forster Gold Medal for Middle Eastern Historical Fiction and the 2025 Xanadu Book Awards Highly Recommended Award of Excellence.

Sepehr's debut novel, "A Hundred Sweet Promises," won the 2023 American Fiction Awards for Historical Fiction and Historical Romance. It was also the #1 Amazon Bestseller in Middle Eastern literature and Historical Russian fiction and was featured on National Public Radio (NPR).

Sepehr is also a Universal Music Group (UMG) recording artist with the Billboard chart-topping duo "Shahin & Sepehr."

He previously worked for the United States Environmental Protection Agency (EPA) for 27 years before retiring to pursue his writing career.