Listing by Event

Every year, there are three major cosplay events in Irvin's life, which are conveniently each four months apart. In February, he has a costumed birthday party. In June, he marches in the Mermaid Parade. And of course, he pulls out all the stops for Halloween. In addition to these, The Group That Shall Not Be Named usually has a Cosplay Day among its yearly events (sometimes two, a Spring and a Fall one), and Irvin always debuts exciting new HP cosplays there.

This is a handy chart of those costumes through the years.

In 2016, Irvin began attending AwesomeCon in Washington DC, an annual all-around geeky convention. Since this is one of the few venues for Irvin to wear non-Potter cosplays, he makes the most of it by focusing on his other major fandoms.