panelist

[ pan-l-ist ]

/ ˈpæn l ɪst /

a member of a small group of persons gathered for formal public discussion, judging, playing a radio or television game, etc.

Origin of panelist

First recorded in 1950–55; panel + -ist

And as Nobel Prize-winning economist Robert Solow, a panelist at the event, pointed out: “Note that this is not a market failure.”

Real Vs. Republican Populism: How to Win the War on Inequality |Michael Tomasky |April 16, 2014 |DAILY BEAST
Lisa Goldman apparently attended a Yeshiva University event this week at which I was a panelist.

What Bret Stephens Said At Yeshiva University |Bret Stephens |October 25, 2013 |DAILY BEAST
Panelist Kim Ruocco said her family suffered a devastating blow when her husband took his own life after serving in Iraq.

Families of the Fallen, Marching On |Abigail Pesta |November 15, 2012 |DAILY BEAST
Panelist Lori Bell founded the National Association of Military Moms and Spouses.

Families of the Fallen, Marching On |Abigail Pesta |November 15, 2012 |DAILY BEAST

The audience, however, greeted the panelist with a healthy dose of skepticism.

The Ultra-Orthodox Women’s Revolution |Sigal Samuel |November 13, 2012 |DAILY BEAST
In other words, I was not considered a panelist, but there were two station people and three panel people.

Warren Commission (11 of 26): Hearings Vol. XI (of 15) |The President's Commission on the Assassination of President Kennedy