1 Andrew Duncan April 29, 2016 by JL the superhuman Andrew Duncan is the cousin of the Duncan kids. He is a very shy kid who loves his cousins a lot. Read more > Retrieved from "http://goodluckcharlie.wikia.com/wiki/User_blog:JL_the_superhuman" Ad blocker interference detected! Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.