Thaddeus was born and raised in LaPorte, IN. He received a Bachelor of Fine Arts degree from Indiana University of South Bend, and then moved to New York City to study at the New York Academy of Art. While in New York, Thaddeus became the director of S.E. Feinman Fine Arts Ltd. in SoHo. In 2004, he returned to the Midwest and opened the Thaddeus C. Gallery in downtown LaPorte. Thaddeus focuses on narrative and mystery in his work.