Stefano Coletti will make his comeback from injury at this weeks GP2 test at Barcelona with DAMS and Coloni.
The 22-year-old Monegasque won twice in GP2 this year for Trident, but has been out of action since fracturing his back in an accident during the Spa feature race in August. He will drive for DAMS, which won the drivers' title with Romain Grosjean this year, on Wednesday, and then switch to Coloni for on Thursday.
Joining him at DAMS on Wednesday will be GP3 race-winner Rio Haryanto, while Dani Clos and Kevin Ceccon will have run-outs with Coloni across the two days.
Among the other drivers testing are Roberto Merhi, who won the International Formula 3 Trophy and the F3 Euro Series this year, and will drive for Arden on Wednesday alongside Superleague Formula race-winner Craig Dolby.
GP3 front runner Adrian Quaife-Hobbs and Formula Renault 3.5 driver Jake Rosenzweig will turn out for Super Nova while Team AirAsia will field regular driver Luiz Razia and American Alexander Rossi. Fabio Onidi and Pal Varhaug will drive for Rapax.