Stephen Robinson has brought in defender Charles Dunne and winger Calaum Jahraldo-Martin on short-term deals.
Dunne is a former Wycombe Wanderers defender who also made 26 appearances for Blackpool. He spent time on loan at Crawley Town last season.
Jahraldo-Martin is an Antigua and Barbuda international forward who signed for Hull City in 2013. He joined Tranmere Rovers, Alloa Athletic and Leyton Orient on loan as well as making 15 appearances for Orient.