I believe that's "Cleanup guy" so named.
Go to 3:40 here:
https://m.youtube.com/watch?t=0s&v=RIYdjq2Wa6E
Good face view
Also other spots where ‘cleaner’ takes something out of the podium 8:45-9:00.
Watch 1:00 to 1:23 for backs of podiums and someone taking something out of the back of illary’s podium.