Who was second in the chain of Roman Catholic church hierarchy?

Roman Catholic AnswerThe Catholic Church consists of Bishops, who are the successors of the Apostles, Priests, who are their assistants, and the laity. The Pope, as Vicar of Christ, and Bishop of Rome, is the head, on earth, the Bishops, under him, would be "second".

1) Pope

2) Bishops

3) Priests

4) Laity