Lyle is my current favorite of the characters! He's born in 2000, several decades post-Bonnie's death and just after Betsy takes power.
He isn't too involved with anything, hoping to get some kind of job the summer after senior year and see where the world takes him.
Any hopes are cut short, however, when Sam and Ellie decide he's perfect for their, frankly ineffective rebellion.

A neat thing about Lyle is, she's actually a woman! A massive part of her character is struggling with people being unable to identify her properly.
Her unwillingness to make herself palatable leads to her appearing strange or creepy to other people, and while that doesn't bother her, the misgendering does.
A big part of the way Sam is able to...manipulate her I guess or why she won't leave him is because he consistently validates her.
While he's doing it for enitrely selfish reasons, no matter how aware of that she is, the fact that he's able to give her
such an important and personal kind of euphoria means; unless someone else provides her with that feeling consistently, she's not going anywhere.
(also he's her boss, and the mayor, and they have almost two decades of this relationship built up...but you never know.)