Birmingham City have signed QPR defender Peter Ramage on loan and free agents Caleb Folan and Cian Hughton - all until the end of the season.
Ramage, 28, spent the first half of the season on loan at Crystal Palace, making 23 appearances.
Republic of Ireland striker Folan, 29, left United States side Colorado Rapids earlier this month.
Defender Hughton, the 23-year-old son of Blues boss Chris, had been without a club since leaving Lincoln last summer.
The former Republic of Ireland Under-21 international will mainly work with the club's development squad.
Ramage began his career at Newcastle, his home town club, before moving to QPR in the summer of 2008.
He missed most of the 2010-11 season with a knee injury but signed a new deal at Loftus Road that summer.
He will be eligible for the Championship play-offs if necessary, as will Folan and Hughton.
Folan played for Rushden & Diamonds, Hull, Chesterfield, Wigan and Middlesbrough in England before his season in Major League Soccer.