Prison Break maintains an ensemble cast for each season along with many recurring guest stars. The first season features a cast of ten actors who receive star billing, who were based in Chicago or at Fox River State Penitentiary. The second season features a cast of nine actors who receive billing; three characters are downgraded from series regular to recurring status, another is upgraded, and a new character is introduced. The third season introduces four new characters; two of whom are prisoners at Penitenciaría Federal de Sona.
Most of the changes in the cast have been due to character deaths. Series creator, Paul Scheuring, explains that...