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.