Special Guest Stars David Selby as Arthur Foster Sherry Stringfield as Rita Guest Stars Luke Kirby as Hugo Jeremy London as Nate Kathleen Rose Perkins as Julia Marcus Giamatti as Jeff David Shatraw as Dan Anne Ramsay as Sally Rhys Coiro as Jaime's Rebound Fred Koehler as Lab Assistant Brandon Barash as Frank Co Starring Ryan Wynott as Joshua Walker Whitney Cummings as Louise Siena Goines as TBD Kathleen Mary Carthy as TBD Anthony DeSantis as Michael Joshua LeBar as TBD Jaime Aguirre as TBD Maurice Godin as TBD Jim Jansen as TBD