On the heels of the early second-season pickup for Fox's Prison Break, the series producer 20th Century Fox TV has locked in two key writers on the show, Nick Santora and Zack Estrin, with overall deals.

According to The Hollywood Reporter, under the separate two-year pacts, which both have options for two additional years, Santora and Estrin will be upped from supervising producers to co-executive producers on the suspense drama next season. They will also develop their own projects for the studio.