The network also announced season finale dates for its current slate
The actor joins with a recurring role starting in April on The CW series
"Star-Crossed" and "The 100" get premiere dates, "Hart of Dixie," "Tomorrow People" get moved
They join The CW's previously renewed scripted series, "The Vampire Diaries," "Supernatural" and "Arrow"
The CW's "Hart of Dixie" returns steady after a month off
"Gossip Girl" starts its last run on Oct. 8, while "Arrow" draws back its bow on Oct. 10
Blake Lively and her "Gossip Girl" scandal-mongers will be back for a fifth season' new Sarah Michelle Gellar series dropped after first season
Earlier renewal announcement for "Ringer" means that all three of the network's freshman dramas have been picked up
Former "Buffy" star and "Dawson's Creek" creator will be joined by Rachel Bilson and Mario Lopez on network's new roster
The 'O.C' actress will team up with her former producer in a new series.
"Hart of Dixie" follows New York City doctor down South