Twenty-six players will assemble in Brighton from Tuesday, May 16 until Thursday, May 18 for a three-day England training camp.
Among those called up are Bristol prop Jamal Ford-Robinson, and former Crusaders scrum-half Willi Heinz, currently with Gloucester.
England face the Barbarians on May 28 before two Tests against Argentina in June.
Forwards: Josh Beaumont (Sale Sharks), Rob Buchanan (Harlequins), Will Collier (Harlequins), Ben Curry (Sale Sharks), Tom Curry (Sale Sharks), Tom Ellis (Bath), Charlie Ewels (Bath), Jamal Ford-Robinson (Bristol), Ross Harrison (Sale Sharks), Chris Robshaw (Harlequins), Nick Schonert (Worcester Warriors), Jack Singleton (Worcester Warriors), Will Spencer (Worcester Warriors), Mark Wilson (Newcastle Falcons)
Backs: Mike Brown (Harlequins), Danny Care (Harlequins), George Ford (Bath), Mike Haley (Sale Sharks), Willi Heinz (Gloucester), Sam James (Sale Sharks), Joe Marchant (Harlequins), Jonny May (Gloucester), Ryan Mills (Worcester Warriors), Denny Solomona (Sale Sharks), Jason Woodward (Bristol), Marland Yarde (Harlequins)