Barnet have re-signed Dean Sinclair on loan from Charlton for an initial month, while also agreeing deals for Exeter's Craig McAllister and Tottenham's Calum Butcher.
Sinclair left the Bees to join the Addicks in 2007 but has yet to start a league game at The Valley.
The midfielder suffered a serious knee injury during a loan spell at Grimsby last season, but will hope to find his best form and fitness back at Underhill.
Barnet manager Ian Hendon has further added to his squad with the signings of Butcher and McAllister.
Butcher, 18, arrives on a month-long loan deal from Spurs and is a central defender, while McAllister is a striker who has joined from League One side Exeter.
Hendon has yet to find out whether the duo can play in the FA Cup tie at Accrington on Saturday.