Victoria JusticeTori Vega Leon Thomas IIIAndre Harris Matt BennettRobbie Shapiro Elizabeth GilliesJade West Ariana GrandeCat Valentine Michael Eric ReidSinjin Van Cleef Jake FarrowRex (voice) (uncredited) / Produsent Lane NapperLane Alexander R. Michael EganHollywood Arts Student Brandon WeaverMan in Dog Costume Marilyn Harris SmithAndré's Grandmother Dan SchneiderChris Burm Announcer (voice) / Manusforfatter / Eksekutiv produsent Aylya MarzolfBack-Up Singer #2 Jerry TrainorSpencer Shay Charles ShaughnessyMason Thornesmith Stephen A. ChangSushi Chef Tina MirkaNorthridge Girl David StarzykPrincipal Eichner Ryan RyusakiAmerican Soldier Whitney Rose PynnBack-Up Singer Jamie SnowTara Ganz / Casting Director Adam TaitAmerican Soldier Jennette McCurdyFawn "Ponnie" Liebowitz / Linda Louie SebertBoy with Ice Cream Davis DesmondChester Kezner Colleen BallingerMiranda Sings Yvette Nicole BrownHelen Dubois Solofa Fatu Jr.Sumo Wrestler Malcolm Foster SmithDorian Kevin ThompsonLittle Person Nathan AndersonChris Burm David MalkoffRick / Manusforfatter Aslyn MitchellHype Girl #2 Lauren MorrisHype Girl #1 Jason E. KelleyShawn Quincy Toussaint WatermanTrey Dirty Laird MacintoshCarl Gibbons Shirley JonesMona Patterson Selwyn Emerson MillerD.J. Webster P. Whinery Jr.Tough Teen Rob RiggleVice Principal Dickers Marcus FolmarDr. Rhapsody Ritsa GountoumasTrina's Opera Voice (voice) Stacy ChboskySchool Nurse Charles Wiggins IIIHip-Hop Dancer Dennis HaskinsRichard Belding Jay Brian WinnickMr. Drysdale Rachel Ann CourtneyLady Gaga Impersonator Victor of AquitaineMaurice Jakob SalvatiFeeding Child Vedette LimFemale Teacher Ivan KalininBandstand Kid Elena EvangeloMadame Makee Roger NarayanAngry Groundskeeper Abigail WilsonPretty Ballerina Robert Christopher RileyDerrick Christopher J. NowakManusforfatter Dan SchneiderChris Burm Announcer (voice) / Manusforfatter / Eksekutiv produsent David MalkoffRick / Manusforfatter Jake FarrowRex (voice) (uncredited) / Produsent Bruce Rand BermanProdusent Matt FleckensteinProdusent Jamie SnowTara Ganz / Casting Director 
