Cheerful and optimistic, Izzy is best friends with Becca and Cassie—even though Cassie has been M.I.A. for the past few months, much to Izzy’s dismay. “Izzy is that friend who wants everything to go seamlessly,” actress Belissa Escobedo says. “She wants everyone to be happy and for it to just be like it was when they were kids. They have always done everything together, so Izzy sees Becca and Cassie as her family. They are like her sisters.”