![Marcia Donnelly](https://static.hbo.com/content/dam/hbodata/series/the-wire/character/the-school/marcia-donnelly-1920.jpg?w=1200)
Marcia Donnelly
Played by Tootsie Duvall
The disciplinarian at Tilghman Middle, Assistant Principal Donnelly has seen it all and maintains a perspective that allows her to get from one day to the next. She does what she can to maintain a modicum of order in the school, utilizing techniques - from informants to plea bargaining to a flying "warrant squad" for truants - that any law enforcement professional would recognize and admire.