Use a class loader all the classes are
25 - Kid Artix
34 - Kid Nythera
35 - another Kid Nythera
39 - Nythera
40 - Warlic
42 - Ash DragonBlade
49 - Xan
Not all guests have a class though, but I am pretty new maybe someone with more experience could make something to make you be able to play as a guest.