JackieDallas,wasborninSyracuse,NY,toSouthKoreanparentsandraisedinamulti-generationalhouseholduntilmovingtoCentralFloridaattheageof6.Inschool,Jackieexcelledacademicallywithatalentandpassionfortheater.Shewasinmultiplehighschoolandlocalcommunitytheaterproductionsandcompetedatseveralregionalevents,receivinghighpraise.SheattendedtheUniversityofFloridaonafullscholarshipandultimatelygraduatedwithaBachelorsinMicrobiologyandCellSciencewhilebartendingparttimeatlocalpoolhallsandrestaurants.Sheattendedmedicalschooldirectlyafteranduponcompletionofhereducation,shespentabrieftimeworkingasaGeneralSurgeryResidentPhysicianinNewYorkCityandthenasaPathologyResidentPhysicianinChicago.Despiteheracademicachievements,however,Jackieneverletgoofherpassionanddreamtocontinueacting.Shewasaskedtodosomepromotionalvideosandlandedacoupleofmodelingjobs,beforedecidingtoresumeauditioningforfilmandTVroles.
Shestartedoutasmostactorsdo,doingbackgroundworkandsmallwalkonrolesonshortfilmsandIndies,beforecatchingherfirstbreakasJenonthehitshowStrangerThings.2022年7月29日,参演的电影《天堂公路》上映。2023年9月9日,参演的电视剧《外籍之人》播出。