the word panelists suggests the presence of knowledgeable individuals who will contribute their expertise to a discussion or panel

experts specialists professionals analysts advisors consultants commentators evaluators authorities judges critics contributors facilitators moderators interlocutors discussants delegates representatives advocates speakers scholars academics researchers thoughtleaders innovators strategists visionaries practitioners organizers curators presenters chairpersons coordinators opinionleaders panelists mentors leaders directors entrepreneurs investors planners creators engineers programmers writers journalists broadcasters storytellers instructors educators word suggests presence knowledgeable individuals contribute expertise discussion panel