Guest Stars Scott Lawrence as Art Costa Maestro Harrell as Matt Lincoln A. Castellanos as Tobias Keith Powers as Calvin Lynn Chen as Nurse Leon Thomas as Russell Co Starring Lexi Johnson as Gloria Jack Donner as Old Man Angelyna Martinez as Physics Teacher Lak Rana as ICU Doctor Andrew Patrick Ralston as Lab Coat Donald Agnelli as Driver B.J. Clinkscales as LAPD Unit Carlos E. Campos as Faculty Member Gavrielle Harris as Student #1 Micah Fitzgerald as Pale Face Junkie Uncredited Evan Sloan Weinstein as Drama Teacher Thomas Haley as Officer Richards Benjamin Waters as Officer Finley Gabriella Martinez as Student Jasmine Aceves as High Schooler