Sean O'Driscoll, who was appointed Crawley manager in May 2012, left the club just two months later to manage Nottingham Forest, despite not having taken charge of a competitive game.

[3] Richie Barker succeeded as manager on 7 August 2012, after agreeing compensation with Bury.

[4] On 5 January 2013, in their third round FA Cup tie with Premier League side Reading, Crawley had a record attendance of 5,880 at Broadfield Stadium.

Although the list below displays a previous club column, many of the players were free agents at the time of signing.

The column also refers to the clubs the players were most recently contracted to, although many of them were on loan before joining Crawley.