Guest Stars Dave Register as Chet Leslie Uggams as Betty Pearson Johnny Pemberton as Thaddeus Rodrigo Luzzi as Reg McPhee Jon Daly as Snake Oil Salesman Michael Esper as Brain-On-A-Roomba / Bud Askins Jon Gries as Biff Rafi Silver as Robert House's Double Michael Emerson as Wilzig Jared Bankens as Nick the Prick Ron Perlman as Super Mutant Co Starring Leer Leary as Davey Sheila Head as Marianne Casey Hendershot as Massive Legionary David Perez Babich as Irv Monica Giordano as Red-Haired Woman Princess Bey as Young Betty Pearson Sam Bullington as Red-Haired Man Angel Giuffria as X-Branch Office Worker #2 Kara Morgan as Vault 33 Support Group Attendee Kevin Camia as Vault-Tec Engineer Stefan Raulston as Vault 33 Pipefitter's Head Justin Shilton as Legionary #2 Nate Holston as Legionary #1 Chriselle Almeida as Vault-Tec Project Manager #2 Michael Spellman as Vault 33 Guard Victoria Schmidt as Marjorie Kathy Byron as X-Branch Office Worker #1 Carol Cantu as Shelley Davey Johnson as Vault-Tec Project Manager #1 Jasper Cole as Gregory Sarah Waisman as Rita Ambrit Millhouse as Vault 33 Farm Committee Chair Les Brandt as Sherman
