Saoirse RonanLady Bird McPherson Laurie MetcalfMarion McPherson Tracy LettsLarry McPherson Lucas HedgesDanny O'Neill Timothée ChalametKyle Sheible Beanie FeldsteinJulie Steffans Lois SmithSister Sarah Joan Stephen McKinley HendersonFather Leviatch Jordan RodriguesMiguel McPherson Marielle ScottShelly Yuhan Laura MaranoDiana Greenway Marietta DePrimaMiss Patty Kristen ClokeMs. Steffans Andy BuckleyUncle Matthew Kathryn NewtonDarlene Bell Bob StephensonFather Walter Abhimanyu KatyalFriendly Banker Chris WitaskeBusiness Jock Ben KonigsbergDavid From College Gurpreet GillConvenience Store Clerk Richard Jin NamkungCool Coffee Manager Joan Patricia O'NeilDanny's Grandmother Robert FigueroaCast Removal Doctor Carla ValentineGuidance Counselor Matthew MaherNYC Man on Street Anita KalatharaProm Chairwoman Debra MillerSaleswoman Joyce Georgia LevaSenior Class Candidate Derek Butler"Merrily We Roll Along" Performer London Thor"Merrily We Roll Along" Performer Shaelan O'Connor"Merrily We Roll Along" Performer Christina Offley"Merrily We Roll Along" Performer Sabrina Schloss"Merrily We Roll Along" Performer Connor Mickiewicz"Merrily We Roll Along" Performer Erik Daniells"Merrily We Roll Along" Performer Cynthia CalesImmaculate Heart of Mary Teacher Giselle GramsImmaculate Heart of Mary Teacher Ithamar EnriquezDriving Instructor Danielle MacdonaldAnother Young Lady Adam BrockBand Lead Singer Bonnie Jean SheltonFab 40s Realtor Rebecca LightMr. Bruno's Wife Janet SongAdministrator (uncredited) Traci SpadorciaSet Decoration Chris JonesProduction Design Sam LevyDirector Of Photography David Feeney-MosierSecond Unit Director Of Photography Ryan HoskingAerial Director Of Photography April NapierCostume Design Jacqueline KnowltonMakeup Department Head Aubrey MarieHair Department Head Erin WaltersKey Makeup Artist Lara CilentoKey Hair Stylist Katina DanabassisKey Costumer Sarah TickalCostume Supervisor Brendan LeeSecond Assistant Director Jonas SpaccarotelliFirst Assistant Director Crystal PlatasAssistant Editor Nicholas RamirezFirst Assistant Editor Alex BickelDigital Intermediate Colorist Paul HsuSound Re-Recording Mixer Justine BakerSound Editor Gail Carroll-CoeBoom Operator Jesse KaplanUtility Sound Brian RossMusic Supervisor Michael HillMusic Supervisor Nicholas SchenckSound Editor Skip LievsaySound Re-Recording Mixer Edward TrybekOrchestrator Emily BuntynCasting Assistant Rebecca FeldmanCasting Assistant Danielle BlumsteinUnit Production Manager Wednesday StandleyProduction Coordinator Michael Edward SmithLocation Manager Ben HarrisCasting Associate Kendra RasmussenAssistant Production Coordinator Andrew LimVisual Effects Supervisor