Main Characters Bryant Lester 'BLT' Thomas Melanie Brodie Paul Tessa Campanelli Archie 'Snake' Simpson Simon Dexter Luke Cassellis Susie Rivera Lorraine 'L.D.' Delacorte Alexa Pappadopoulos Erica Farrell Heather Farrell Rick Munro Diana Economopoulos Ms. Karen Avery Lucy Fernandez Kathleen Mead Allison Hunter Amy Holmes Derek 'Wheels' Wheeler Liz O'Rourke Voula Grivogiannis Maya Goldberg Nancy Kramer Joey Jeremiah Michelle Accette Caitlin Ryan Shane McKay Yick Yu Christine 'Spike' Nelson Stephanie Kaye Arthur Kobalewscuy Daniel Raditch