Ten of the 32 players, including Tigers scrum-half Youngs, were capped at this level last season while wing Hurrell is among those elevated from the England Under-18 ranks. Tigers hooker Collett has also come through the younger age-groups with England.
The Under-20 Elite Player Squad will be coached by Mark Mapletoft and Martin Haag, playing RBS Under-20 Six Nations games before travelling to the IRB Junior World Championship in Japan.
England have a high standard to aim at after a Six Nations Grand Slam in 2008 before defeating Australia and South Africa to reach their first-ever world age-group final, where they were beaten by New Zealand, in June.
The Under-20 programme includes a four-day get-together this month and a warm-weather winter training camp in Portugal before the Six Nations begins with a home game against Italy on February 7.
England Under-20 squad
Forwards
Joe Marler (Harlequins), Ben Moon (Exeter Chiefs), James Clark (London Irish), Tom Collett (Leicester Tigers), Jamie George (Saracens), Phil Swainston (Leeds Carnegie), Bob Baker (London Wasps), Courtney Lawes (Northampton Saints), Dan Williams (Gloucester Rugby), Graham Kitchener (Worcester Warriors), James Gaskell (Sale Sharks), Calum Clark (Leeds Carnegie), Chris York (Harlequins), Jacob Rowan (Leeds Carnegie), Tom Sargeant (Harlequins), Carl Fearns (Sale Sharks), Rob Milligan (Northampton Saints)
Backs
Ben Youngs (Leicester Tigers), David Lewis (Gloucester Rugby), Dan White (Leeds Carnegie), Rob Miller (Newcastle Falcons), Rory Clegg (Newcastle Falcons), Charlie Sharples (Gloucester Rugby), Sam Smith (Harlequins), Luke Eves (Bristol Rugby), Mike Stanley (Saracens), Tom Casson (Saracens), Henry Trinder (Gloucester Rugby), Seb Stegmann (Harlequins), Will Hurrell (Leicester Tigers), James Short (Saracens), Freddie Burns (Gloucester Rugby)
