Lindsay of "The O.C."
Played by Shannon Lucio


The family dynamics on the Fox series got way complicated when Ryan’s Season 2 girlfriend (played by Shannon Lucio) discovered that Caleb is her father, making Ryan’s “mother” Kirsten her half-sister.

But after just half a season and some attempts at bonding with her new brood, Lindsay moved to Chicago with her mother and was never seen or heard from again, even when Caleb died. Some people just aren’t cut out for O.C.-level drama.

https://tvline.com/lists/tv-characters-who-disappeared-list-photos-friends-greys-anatomy/tv-characters-who-disappeared-lindsay-the-oc/