MTV has picked up Teen Wolf for a second season, the network announced today, calling for 12 new episodes to air in 2012. The teen-skewing werewolf show is the network’s highest-rated new series this season, attracting about 1.7 million viewers on Mondays at 10 PM, where it has doubled the time-period average compared with a year ago. Tyler Posey, Crystal Reed and Dylan O’Brien star. Creator Jeff Davis, Marty Adelstein, Michael Thorn, René Echevarria, Tony DiSanto and Liz Gateley are executive producers; Russell Mulcahy is co-executive producer. David Janollari and Justin Levy are the MTV execs in charge of production. The series is a co-production with MGM in association with Lost Marbles Prods, First Cause and DiGa.