Accrington have signed central defender Kern Miller on a six-month loan from Barnsley and former Hamilton goalkeeper Sean Murdoch on a one-year contract.
Miller, 20, has only made one appearance in his career, for Lincoln in a 2-0 win at Stanley in April 2009.
Murdoch, 24, has played his entire career to date in Scotland, for Dunfermline, Forfar and Accies, who released him this summer.
He has made 64 appearances in his career to date.
Manager John Coleman told BBC Radio Lancashire: "It gives Kern that chance to play competitive football. Sean has played in the SPL and has enough experience for us."
Both will be in contention to play for Stanley in their opening League Two match of the season at Northampton on 6 August.
Coleman said: "Centre-halves need game understanding and they only get that in pressure situations. The only way to improve is playing in games that matter."
Murdoch, who has won caps at Scotland Under-18 and Under-19 level, will provide competition for Ian Dunbavin in the goalkeeping department next season.
Coleman added: "Sean possibly has lost his way a little bit. He was one of the bright hopes of Scottish football earlier on in his career and has probably not played as many games as he'd like.
"He's a bubbly character and is good with his feet. He showed at Barrow [during a trial] recently that he is capable of making some fantastic saves."
The arrivals of Miller and Murdoch are in addition to the three previous summer signings, defender Danny Coid, midfielder Kevin McIntyre and striker Kurtis Guthrie.