In Parks and Recreation, Jeremy Jamm is an orthodontist. Played by Jon Glaser, Jamm is introduced as a Pawnee city councilman and becomes one of Leslie Knope's most persistent political enemies.
His dental career is a recurring part of the character's identity. He owns Jamm Orthodontia, and the title “Dr.” reflects his professional credentials rather than a medical career. His practice and political position make him a recognizable figure in Pawnee: he is both a local businessman and an elected official.
Viewers sometimes answer “dentist,” which is broadly related but less precise. An orthodontist is a dental specialist who diagnoses and treats problems involving teeth and jaw alignment, often using braces or other corrective appliances. Jamm's occupation is also easy to confuse with his city-council role, but the question asks what he does professionally. His antagonism toward Leslie is mainly political, especially during disputes over Pawnee policy and local development.