Special Guest Stars Cybill Shepherd as Dr. Madeleine Spencer Peter Weller as Mr. Yin Guest Stars Skyler Gisondo as Young Shawn Jimmi Simpson as Dr. Mary Lightly Ally Sheedy as Mr. Yang Mena Suvari as Allison Crowley Co Starring Sage Brocklebank as Buzz McNab Megan Charpentier as Little Sister Dean Redman as T-Bone Anthony Harrison as Professor Evan Bird as Brother Yolanda Ulmer as Mom Allan Gray as Dean Nicholas Longstaff as Crime Scene Tech R. Morgan Slade as Nerdy Student