GP2 Series race winner Dani Clos will return to the series at the Hungaroring this weekend with MP Motorsport.
Clos replaces Briton Adrian Quaife-Hobbs, who announced on Wednesday that he was switching from MP to Hilmer Motorsport in place of Robin Frijns.
"We're delighted to welcome Dani to the team," said MP team principal Sander Dorsman.
"The experience he brings to the team will be priceless. He's won in GP2 and has tested in Formula 1. We're all really looking forward to working with him for the first time in Hungary this weekend."
Clos, 24, competed in GP2 from 2009-12, winning at Istanbul Park in '10 and adding an Asia Series success at Imola in '11.
He was the Italian Formula Renault champion in 2006, was a podium finisher in the F3 Euro Series and also raced in FR3.5.
He spent last year as the test driver for the HRT F1 team, taking part in four Friday practice sessions. He has also tested for Williams.
Rival squad GP Lazarus has also altered its driver line-up, bringing in Auto GP front-runner Vittorio Ghirelli for his series debut in place of Fabrizio Crestani.