| Alexander Vindman | Director for European Affairs, National Security Council (July 2018–present) |
| Kurt Volker | U.S. Special Representative for Ukraine Negotiations, U.S. Department of State (July 2017–September 2019) |
| Russell Vought | Acting Director, U.S. Office of Management and Budget |
| Kathryn Wheelbarger | Acting Assistant Secretary of Defense for International Affairs, U.S. Department of Defense (November 2018–present) |
| Jennifer Williams | Special Adviser for Europe and Russia, Office of the Vice President |
| Viktor Yanukovych | President of Ukraine (February 2010–February 2014) |
| Arseniy Yatsenyuk | Prime Minister of Ukraine (February 2014–April 2016) |
| Andrey Yermak | Adviser to President of Ukraine Volodymyr Zelensky |
| Marie Yovanovitch | U.S. Ambassador to Ukraine (August 2016–May 2019) |
| Volodymyr Zelensky[1] | President of Ukraine (May 2019–present) |
| Mykola Zlochevsky | Co-founder, Burisma Holdings (2002–present) Ukrainian Minister of Ecology and Natural Resources (July 2010–April 2012) |
- ↑ Although some sources use alternate spellings of the Ukrainian President’s surname, this report uses the spelling "Zelensky" for consistency throughout.
xii
