For those seriously wondering, yes, in the U.S justice system, many celebrities have been on jury duty, as well as several politicians. Unfortunately, fictional characters aren’t typically allowed jury duty, meaning that you’ll never get a Quintesson to give you “Innocent” before throwing you into a vat of Sharkticons.
In my jurisdiction the only ones formally exempted from jury duty are those who are employed in the courtrooms: judges, bailiffs, and court reporters.
There are several other occupations that, while not formally exempt, are almost guaranteed to result in you not being picked: law enforcement, child protective services, district attorney office, criminal defense attorney.
Im salaried, fuck it. Unfortunately my ADHD ass missed my last two jury summons that I had every intention of going to so they don't ask me anymore. At least they didn't arrest me 😅
Realistically, seeing someone in a setting you do not expect them to be in would make you less likely to recognize them, so it would be less "Hey, Williem Dafoe is in my jury" and more "Hey, that guy in my jury kind of looks like the actor from Spider-man".
Think of it this way, if Williem Dafoe shows up at say, a tech conference, and went around telling everyone "I'm esteemed Academy Award nominated character actor Williem Dafoe", most people there are going to think:"Why is there a Williem Dafoe impersonator at this conference?" instead of "Why is Williem Dafoe here?"
It's his major recent work in public eye, plus the MCU is huge in terms of pop culture, so I'm using this as an example of how he might currently be recognized in public as, not that it is what he is best known for.
To add to your statement: a few years ago, Henry Cavill went to Times Square in NYC wearing a shirt with the Superman S, and just hung out around signs for Man of Steel, and pretty much nobody recognized him (or if they did, they didn't let it be known).
But then again, it is New York City, most pedestrian there are always in a rush to get to where they needed to be and wouldn't take a second glance at even the strangest happening as long as it isn't blocking their way.
James Marsden had jury duty once, used his celeb status to get out of being sequestered!
(Watch jury duty on Amazon, if you're cringing too much just watch the last episode which is a re-cap and brilliant in it's own right, my wife won't watch the whole show but loved the last episode)
They get called in for jury duty just like anyone else, but I doubt many actually get selected for the jury. The last time I had to do jury duty one of the people in the jury pool was a car dealer owner that did a bunch of local commercials and he was one of the first peeps to get canned.
Generally you want your jury to be impartial and bland. Everyone in the jury should be paying attention not the case, not their fellow jury members.
One thing that concerns me about celebs on juries is that their compatriots on the jury might ascribe more power / logic to their takes because of their authority / celebrity as a public figure. "If Tom Hanks thinks so, he must be right…" "Oprah tells me what to read and gives away cars; how could she be wrong?"