Billy Burns, Jonny Hill and Ross Moriarty are the players in questions as England head to New Zealand to defend the trophy that they won in France last year.
Coaches Nick Walshe and Ian Peel will be hoping to defend the title they won last June in France, and have named seven players with previous JWC experience - including captain Callum Braley.
England kick off their campaign on June 2against Italy at the ECOLight Stadium in Pukekohe before facing Australia on June 6 at the QBE Stadium, Auckland, before taking on Argentina on June 10, again at the QBE Stadium.
Head Coach Walshe said:
"We're pleased with the balance and experience in this squad, and we are confident that they will perform well in each of our five matches.
"While England U20 are the holders of the trophy, this group hasn't won anything - we enjoyed a successful Six Nations, and while it was disappointing not to win it, as a group we came on hugely. The key is to keep building on that momentum."
Forwards Coach Peel said:
"Our focus is on that first game against Italy. We have a warm up match and a camp in Newcastle prior to flying out, but the plan is to build towards that opening match. The games come thick and fast in this tournament, we've got a very tough group but we're excited by that challenge."
Captain Callum Braley added:
"It's massively exciting to be heading down to New Zealand to defend our title. Rugby is obviously huge over there and there will be some pressure on us, but we will use that as a positive and look to perform as best we can."
England Under 20 squad
Biyi Alo (Saracens), James Chisholm (Harlequins), Joel Conlon (Exeter Chiefs), Tom Ellis (Bath Rugby), Charlie Ewels (Bath Rugby), Jonny Hill (Gloucester Rugby), Paul Hill (Leeds Carnegie), Danny Hobbs-Awoyemi (Northampton Saints), Maro Itoje (Saracens), Gus Jones (London Wasps), Alex Lundberg (London Wasps), Ross Moriarty (Gloucester Rugby), Harry Rudkin (Leicester Tigers), Harry Thacker (Leicester Tigers), Jack Walker (Leeds Carnegie), Tom Woolstencroft (Bath Rugby)
Callum Braley (Bristol Rugby, captain), Billy Burns (Gloucester Rugby), Nathan Earle (Saracens), Tom Fowlie (London Irish), Aaron Morris (Bedford Blues), Sam Olver (Northampton Saints), Henry Purdy (Leicester Tigers) ,Howard Packman (Northampton Saints), Harry Sloan (Harlequins), Tom Stephenson (Northampton Saints), Henry Taylor (Loughborough University), Nick Tompkins (Saracens)
England U20 at the JWC
2013 - P5 W4 L1 - 1st
2012 - P5 W3 L2 - 7th
2011 - P5 W4 L1 - 2nd
2010 - P5 W3 L2 - 4th
2009 - P5 W4 L1 - 2nd
2008 - P5 W4 L1 - 2nd
Overall: P30 W22 L8