Have you ever noticed a background character more than the protagonists? What extras do you think deserve a mention?
So, for me, one of the most obvious ones is from Raiders of the Lost Ark, during a chase scene where Indiana crashes into a wooden scaffolding, and one of the builders, after landing on the engine, stares in awe at Indiana through the windshield. It's at 2:00 here:
https://www.youtube.com/watch?v=CjCmtqPIRp4Another one is the pizza planet guy from Toy Story. "Hey, Gas Dude!"
And one nobody else has noticed is one of the students in the first half of the Austere Academy episodes of A Series of Unfortunate Events, a girl in braids, chanting along with Carmelita "Cakesniffing orphans in the orphan shack!" who looks like she's getting a real kick out of conforming to peer pressure.
