Special Guest Stars Cristin Milioti voices Barbara Belfry Chris O'Dowd voices Seamus Timothy Olyphant voices Sheriff Flanders Jessica Paré voices Colette Brian Cox voices Kostas Becker Guest Stars Maggie Roswell voices Helen Lovejoy Pamela Hayden voices Rod Flanders Kevin Michael Richardson voices Narrator Tress MacNeille voices Orphan Children Chris Edgerly voices Scotus Szyslak