Twins Talk0 Category page There is currently no text in this page. You can search for this page title in other pages, or search the related logs. Jeffery “Jason is a 4 year old who is one of Caillou's friends. He has a twin brother named Jeffery... Jason Pages in category "Twins" The following 2 pages are in this category, out of 2 total. J JasonJeffery Retrieved from "http://caillou.wikia.com/wiki/Category:Twins"