Leyton Orient have signed right-back Nicky Hunt from Mansfield, while Crystal Palace defender Jerome Binnom-Williams has joined on loan.
Hunt, 32, came through the youth ranks at Bolton and has signed until the end of the season with the option of a further year, for an undisclosed fee.
Binnom-Williams has made two League Cup appearances for Palace and was on loan at Burton earlier this season.
The 20-year old can play at left-back or in the centre of defence.
Hunt, who made 21 appearances for Mansfield after joining the Stags last summer, has also had stints with Bristol City, Preston and Rotherham since leaving Bolton in 2010,
The east London club have also extended the loan deal of Hull winger Calaum Jahraldo-Martin until the end of the season, but defender Cole Kpekawa has been recalled from his spell at the Matchroom Stadium by parent club Queens Park Rangers.
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