Kate Siegel plays Adelaide, Carrie narrator who kills Margaret in finale

Kate Siegel plays Adelaide in Prime Video's Carrie, Deadline reported 9 October. Adelaide narrates episodes tracing women with the TK gene. In the Season 1 finale she is revealed interviewing prom fire survivors, kills Margaret, played by Samantha Sloyan, then pursues Carrie and Emaline. Carrie joins Adelaide's collective of psychically powered women, per Time.