Which cast member portrayed the obnoxious character 'Gilly'?

Kristen Wiig portrayed Gilly, the obnoxious and mischievous schoolgirl on Saturday Night Live. Gilly typically interrupts a classroom lesson with increasingly destructive pranks, then offers an insincere “Sorry” when blamed.

The character debuted during SNL’s 34th season in a January 2009 episode hosted by Rosario Dawson. In the standard sketch, Will Forte plays teacher Mr. Dillon, who repeatedly asks students whether they caused the disruption. Gilly’s calm denials and exaggeratedly innocent expression contrast with the chaos she creates.

Gilly became one of Wiig’s recurring characters during her seven-season SNL tenure, which ran from 2005 to 2012. The character appeared in several later sketches, including a Christmas special and a 2010 episode hosted by Jane Lynch. Viewers sometimes confuse Gilly with Wiig’s other recurring characters, such as Target Lady or Penelope, but Gilly is specifically the troublesome schoolgirl.