Mark Brendanawicz was a city planner with the Pawnee municipal government. When he studied city planning in college, Mark was optimistic about the field and dreamed of designing huge and impressive cities. However, since graduation, Mark learned most of the career largely involved mundane technical issues, such as regulating the sizes of garages and proposed construction additions to houses. As a result, Mark grew jaded and disillusioned with the career, and became critical of government processes in general. Mark and Leslie slept together on one occasion - as a result, Leslie harbored romantic feelings for him for over 6 years. Mark does not return said feelings - he barely remembers the incident taking place.