The Girl on Phone is a Shermerite who talks to Ferris Bueller on the phone while he's pretending to be sick. She is played by Kristin Graziano.
Ferris Bueller's Day Off Edit
When Ferris Bueller is talking with three boys about his "sickness", he asks to get someone else, and this girl gets on the phone with Ferris and she asks him how he's feeling, and when she realizes that his sickness is serious, she asks if he'll be alive this weekend, and hopes to see him. Then, she says 'bye', and goes to class.