Special Guest Stars Aubrey Plaza voices Amber Duffman Paul Brittain voices Brandon Guest Stars Alex Désert voices Carl Carlson Kevin Michael Richardson voices Dr. Julius Hibbert Pamela Hayden voices Angry Crowd Grey DeLisle Griffin voices Angry Crowd Grey DeLisle Griffin voices Airport Passerby #4 Grey DeLisle Griffin voices Airport Passerby #2 Grey DeLisle Griffin voices Women's Bar Customer Tress MacNeille voices P. F. Thongs Lady Tress MacNeille voices Angry Crowd Tress MacNeille voices Hippy Duffman Singers Tress MacNeille voices Renata Tress MacNeille voices Helen Mirren Tress MacNeille voices Colleen Tress MacNeille voices Judy Kevin Michael Richardson voices Pool Party Attendee #1 Kevin Michael Richardson voices Duff Advertisement Voiceover Kevin Michael Richardson voices Duffman Executive Board Pamela Hayden voices Hippy Duffman Singers Pamela Hayden voices Airport Passerby #5 Chris Edgerly voices TMi Reporter Chris Edgerly voices Airport Passerby #6 Chris Edgerly voices Mascot Convention Announcer Chris Edgerly voices Hippy Duffman Singers Jenny Yokobori voices Mascot Convention Attendee