Who are the participants in a trial?

Answer 1

you'll shoot your eye out.

Answer 2

There's a Plaintiff, and a Defendant,
(generally represented by lawyers),
A Judge, and, most times, a jury.
Both sides may call witnesses.
In a criminal trial, the plaintiff is the State.
In a civil trial, both the first two are individuals
or corporate entities.

Answer 3

Plaintiff(s), Defendant(s), attorneys, judge, jury (if there is one) and witnesses.

Answer 4

that's for you to decide. but it's normally the plaintif, the defendant, the judge.