some people are wondering who the moustache man is and i am too so heres everything i can think of so far
In the "long live" trailer, he is shown leading the dictator and politician up the stairs, and upon reaching the corridor, the politician joins him side by side with the dictator looming behind them.
When they enter the room, the moustache man walks with the politician to stand beside the secretary. He is also paired with the secretary in the "opera" trailer.
The symbolism around him strongly suggests he is someones dedicated lover, likely the secretary as he's paired with her the most.
I'm not an expert on flowers, but I believe the bouquet is made up of two very romantic flowers, red carnations (love, passion, affection) and baby's breath (everlasting love, innocence). The moustache man has a red carnation pinned to his jacket so the bouquet is likely from him.
Some MORE lover boy evidence comes from Gerard dressing up as this character in Las Vegas October 7th 2022. On this night, the drum read "My Whole Heart".
I would also argue, the Gerard look from Montreal September 2nd 2022 could possibly be this same character. Only, much like the secretary, he's got totally fucked up and he's lost his eyes and his flower, or his "heart".
This outfit match I am less sure of, especially since it took place before the Vegas show, but it is the same shirt and trousers, and again we have a lover themed drum "I only have eyes for you <3".
SO... although I don't know much about him yet, the results so far say he’s a good old fashioned lover boy