Responses
They are brothers. Chase is the yoinger bro of Grayson
Same author different artist. We'll see his brother Grayson by this artist in future chapters, because he appears in this story. Probably we'll even see a pic of Nathaniel, too.:D
And Chase will change his appearce for a movie shot at some point, just waiting for people coming complaining that Josh "cheats".XD
* appearence
They probably mixed up the genes, like in the kiss me liar Cecil looks like his uncle(Grayson) more than Chase. And please correct me if I'm wrong but isn't it chase and Grayson are brothers? Why ppl said that it was chase instead of Grayson???