Guest Stars Kirsten Vangsness as Penelope Garcia Lukas Haas as Clerk Evan Lee Dahl as Jeremy Warren Takeuchi as Wayne Sarah Jane Redmond as Gloria Steve Bacic as Uniform #3 Jennifer Hall as Clara J. Karen Thomas as College Admin Tuner Bob Jesser as Professor Wallace Christopher Mowod as Campus Patroller Erika T. Johnson as Agent Trainee Kristen Caldwell as Chemistry Student Nathanial Moon as Agent Trainee Rolando Millet as Campus Security Guard Sage Mears as Chemistry Student Michael David Cheng as Fire Inspector Zhang