General Thomas B. Dean brings more than three decades of prosecutorial experience and a lifetime of community commitment to his role as District Attorney for Sumner County. Born in Savannah, Tennessee in 1962, Thomas moved to Sumner County in 1968 when his father accepted a position with the Southern Baptist Sunday School Board, and he has proudly called the county home ever since. One of four children, he grew up in Hendersonville, graduated from Hendersonville High School in 1980, and went on to begin his academic journey at Volunteer State Community College. He later earned his bachelor’s degree in political science from Middle Tennessee State University and his law degree from the University of Tennessee College of Law.

Thomas began his legal career with the firm of King & Ballou before joining the Tennessee Attorney General’s Office in 1991, where he litigated cases across Middle Tennessee, including in his home county. In 1995, he accepted an offer from longtime District Attorney Ray Whitley to serve as an Assistant District Attorney in the 18th Judicial District. What began as an opportunity to return home and serve the community he loved became a distinguished thirty-year career defined by integrity, dedication, and a deep commitment to justice.

Throughout his decades in the DA’s office, Thomas has prosecuted thousands of cases and developed a recognized expertise in complex white-collar crime. About ninety percent of his practice has involved financial theft, fraud, and large-scale economic crimes. He has led major prosecutions such as the case against disbarred attorney Andy Allman, who stole more than $300,000 from clients, and the conviction of James Gill, a pastor who misappropriated food bank funds. In addition to financial crimes, he continues to prosecute drug offenses, violent crimes, and cases involving some of the most vulnerable members of the community.

Protecting elders and vulnerable adults has become one of the fastest-growing areas of criminal justice, and Thomas helped lead that effort in Sumner County. He was appointed the first leader of the newly established Vulnerable Adult Protective Investigative Team (VAPIT), coordinating state agencies, law enforcement, and private partners such as banks to investigate and prosecute exploitation, abuse, and neglect. His work in this area has become a defining part of his service and reflects his belief that a just community is one that protects those least able to protect themselves.

Thomas’s commitment to strengthening the legal profession extends beyond the courtroom. He serves as a case officer for the Tennessee Board of Professional Responsibility, reviewing disciplinary decisions and sitting on panels that hear contested attorney-discipline matters. His leadership, judgment, and fairness have earned the trust of colleagues across the state.

In 2025, Governor Bill Lee appointed Thomas as District Attorney General for the 18th Judicial District following the retirement of Ray Whitley. For Thomas, the appointment was deeply humbling. After spending his entire career serving the people of Sumner County, leading the office is, in his words, “a dream come true.” His vision for the District Attorney’s Office is rooted in strengthening resources, expanding staff, and ensuring that victims receive the support and justice they deserve in a rapidly growing county.

Thomas and his wife, Jeannie Parks Dean—also a Hendersonville High School graduate—have been married for more than forty years. They raised their four children in Sumner County’s public schools and are now the proud grandparents of nine grandchildren. Over the years, Thomas has remained active in the community, including coaching the Beech High School track team and supporting local youth and families.

For Thomas Dean, Sumner County is not just the place he serves—it is home. It is where he grew up, built his career, raised his family, and dedicated his life to protecting the community he loves.