Guest Stars Alexa Barajas as Teen Mari Nia Sondaya as Teen Akilah Sarah Desjardins as Callie Sadecki Ella Purnell as Jackie Taylor Alex Wyndham as Adult Kevyn Tan Nicole Amber Maines as Lisa Elijah Wood as Walter Tattersall John Reynolds as Matt Saracusa Co Starring Mya Lowe as Teen Gen Luciano Leroux as Javi Martinez Jenna Burgess as Teen Melissa Caroline Shaw as Featured Vocalist