Special Guest Stars Nicole Byer voices Erica Awkwafina voices Carmen Chelsea Peretti voices Piper Guest Stars Pamela Hayden voices Milhouse Van Houten Russi Taylor voices Martin Prince Maggie Roswell voices Luanne Van Houten Tress MacNeille voices Dolph Shapiro Tress MacNeille voices The Great British Boiling Show Co-Host Tress MacNeille voices Lady Itchy Chris Edgerly voices Josh.0 Host