Hadas Klein is an Israeli administrative professional and longtime personal aide to Hollywood producer Arnon Milchan, having worked closely with him for over two decades. Born on 1966-04-02, she resides in Holon, Israel, and also served as office manager for Australian businessman James Packer, handling personal and professional logistics for both moguls within the 'Milchan Brothers' conglomerate, including management of their luxury estates in Israel and procurement of specific goods for high-profile guests. She gained international prominence as a key state witness in the corruption trial of Israeli Prime Minister Benjamin Netanyahu, particularly in Case 1000 (the Gifts Case), where her testimony from 2022-2024 provided an 'iron-clad' account of systemic bribery. Klein detailed meticulous record-keeping of a 'supply line' of gifts, flights, and favors provided by Milchan to Netanyahu and his wife Sara, including luxury items like specific brands of champagne (using code word 'pink'), cigars (code word 'leaves'), and jewelry, noting that she never visited the Netanyahus' home empty-handed as part of the routine. Her pivotal role for the prosecution drew intense public and political vitriol, leading to threats, harassment, police questioning over a social media post, and placement under security protection. In 2024, she was credited as a writer and primary source in the documentary 'The Bibi Files', which covers leaked files and interrogation footage from Netanyahu's trial.