The O.C. Cast: Then and Now
Willa Holland: Then
Holland replaced Shailene Woodley as Kaitlin Cooper after Season 1. Daughter of Jimmy (Tate Donovan) and Julie (Melinda Clarke) and sister of Marissa (Mischa Barton), Kaitlin temporarily returned home from boarding school and befriended Johnny Harper (Ryan Donowho). Months later, Kaitlin returned to Newport Beach full-time. She later blackmailed Dr. Neil Roberts (Michael Nouri) and dated band geek Will Tutt (Chris Brown). By series' end, she had a half-brother and attend college full-time.