James, Michelle, Erin, Orla, and Clare From Derry Girls What to wear: Take yourself into the wild lives of these crazy teens this Halloween by dressing up as one of the Derry Girls, James included. You'll need a green blazer, plaid skirt, black leather shoes, and whole lot of chaos to channel this group from an all-girls Catholic school in '90s-era Northern Ireland. Image Source: Everett Collection