| Trump, Donald J. | U.S. President, January 2017-present |
| Trump, Donald J., Jr. | Son of President Trump |
| Vindman, Alexander S. | Director for Ukraine, National Security Council, July 2018present; Lieutenant Colonel, U.S. Army |
| Volker, Kurt | U.S. Special Representative for Ukraine Negotiations, Department of State, July 2017-September 2019 |
| Vought, Russell T. | Acting Director, Office of Management and Budget, January 2019present |
| Whistleblower | Author of complaint declassified by the Office of the Director of National Intelligence on September 25, 2019 |
| Williams, Jennifer | Special Advisor for Europe and Russia, Office of the Vice President, April 2019-present |
| Yermak, Andriy | Assistant to the President of Ukraine, May 2019-present |
| Yovanovitch, Marie L. | U.S. Ambassador to Ukraine, August 2016-May 2019 |
| Zakaria, Fareed | Host, Fareed Zakaria GPS, June 2008-present |
| Zelensky, Volodymyr | President of Ukraine, May 2019-present |
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