Sherri Troiani

 (born 1978-1979) was Alex's teacher, after Ms. Rosadini (who filled in as Alex's teacher when Mrs. Snow retired after winning the lottery) after got demoted to teaching the remedial kids. Despite being married, she has a crush on her top student Alex. However, he managed to even the score with Sherri by doing the "Dirty Fozzie", as well as suggesting the class (which consists of 8 boys, and 4 girls) into staying after and taking off their clothes. However, Sherri doesn't want Alex to get too impulsive with these kinds of moves.

One night, when Alex was sleeping, Sherri suggests killing her husband (that she is currently living with), and going AWOL to Temecula. However, Sherri does it, by planting a platypus in her husband's oatmeal, killing him in the process. When the police discover the murder, Sherri runs away to Temecula with her platypus husband.