Later that day, Kurt Volker, the former US special envoy for negotiations with Ukraine, and Timothy Morrison, Assistant Europe and Russia at the NSC, will testify.
Gordon Sundland, US ambassador to the European Union, is expected to appear next Wednesday morning. Later Wednesday, the committee is expected to hear Laura Cooper, a senior Pentagon official working on Russia and Ukraine, and David Hale, deputy secretary of state for political affairs.
The testimony testimony marathon will end next Thursday, when Fiona Hill, the former head of Russia at the NSC, is expected to testify.
The slate of witnesses is particularly remarkable because it includes three of the witnesses asked by Republicans: Volker, Hale and Morrison.
In a press release announcing the hearings, the committee's Democratic majority stated that it "has accepted all requests [GOP] that are within the scope of the impeachment investigation."
But the list so far excludes a number of other witnesses sought by GOPs who would target the hearings, which are aware of the central thesis of Democrats' allegations against Trump: that he is abusing his power by pressuring Ukraine to launch investigations into its political opponents.
It is unclear whether the schedule revealed by the Chairman of the Intelligence Committee, Adam Schiff, will be further expanded in the coming days or other witnesses of Republican favor will be considered.