Justin Long and the guy from Lucky Number Slevin are the inspiration for this.
Robert Pattinson has actually been in a lot of interesting movies since Twilight. He's gone the indie route and has really proven to be an excellent actor. I suggest watching Good Time to really see what he's capable of, almost surprised he didn't get a nomination out this role. The Lost City of Z is a terribly long film but his performance in it is a highlight. I think he has a long career ahead of him in more indie low budget films. Twilight money gives him the opportunity to not have to take on big blockbuster roles.
he also went into a fling with FKA Twiggs, and she's underground art super indie. check out "FKA Twiggs - water me". From that, I found that they were dating... that was a year or more ago though
I'd probably put Macaulay Culkin on that list. Dropped of the face of the earth when he was no longer cute.
Maybe Robert Pattinson. Not that I thought he was that great in the Twilight series--bad series of movies for acting in general--but he was really famous for that, then pretty much poofed.