Scarlets back row Tom Phillips will captain Wales Under-20s in this season's Six Nations Championship.
Phillips, who has made four appearances for his region this season, played twice in last year's competition when Wales won three of their five games.
The squad includes another 11 players who made their U20 debuts last season.
"Our targets, primarily, are to play a style of rugby which is enjoyable to play and watch, and will benefit player development," said coach Jason Strange.
Blues prop Dillon Lewis, Scarlets fly-half Dan Jones, Blues fly-half Jarrod Evans and Ospreys centre Owen Watkin are the other players includes who have played regional games this season.
Former Newport fly-half Strange will take charge for the first time when Wales travel to Ireland on the opening weekend of the competition on Friday, 5 February.
"Victories are important, but a bigger agenda is to prepare players for the professional game by exposing them to international rugby," Strange said.
"For us, Tom Phillips was an obvious choice as captain, he is someone who leads by example both on and off the pitch."
Ireland U20 v Wales U20 - Friday 5 February, Donnybrook (19:35 GMT)
Wales U20 v Scotland U20 - Friday 12 February, Parc Eirias, Colwyn Bay (18:30 GMT)
Wales U20 v France Saturday - 27 February, Parc Eirias, Colwyn Bay (19:45 GMT)
England U20 v Wales U20 Friday 11 March Ashton Gate, Bristol (19:45 GMT)
Wales U20 v Italy Friday 18 March, Parc Eirias, Colwyn Bay (19:05 GMT)
Forwards: Tom Phillips (captain, Scarlets), Rhys Fawcett (Scarlets), Corey Domachowski (Blues), Leon Brown (Dragons), Kieron Assiratti (Blues), Dillon Lewis (Blues), Dafydd Hughes (Scarlets), Ifan Phillips (Scarlets), Tim Grey (RGC 1404), Adam Beard (Ospreys), Bryce Morgan (Dragons), Shane Lewis-Hughes (Blues), Shaun Evans (Scarlets), Harrison Keddie (Dragons), Morgan Sieniawski (Blues)
Backs: Declan Smith (Scarlets), Cameron Davies (RGC 1404), Daniel Jones (Scarlets), Billy McBryde (Scarlets), Jarrod Evans (Blues), Owen Watkin (Ospreys), Kieran Williams (Ospreys), Joe Thomas (Ospreys), Barney Nightingale (Dragons), Harri Millard (Blues), Elis-Wyn Benham (Blues), Tom Williams (Ospreys), George Gasson (Dragons), Keelan Giles (Ospreys), Rhun Williams (RGC 1404), Joe Gage (Ospreys)