The uncapped duo are called into a Wales squad for the first time and will link up with the experienced squad when they convene at the National Centre of Excellence next Monday.
Rob Evans, Wyn Jones and Nicky Smith who all featured in the recent Under Armour Series are named with Dillon Lewis, who made his debut on the 2017 Summer Tour, Tomas Francis and Samson Lee. Scott Baldwin is recalled to the squad and is named alongside Ken Owens and Elliot Dee at hooker.
57-times capped second-row Bradley Davies features alongside skipper Jones, Cory Hill, Seb Davies and Adam Beard.
In the back-row Davies joins Cardiff Blues duo Ellis Jenkins and Josh Navidi, fellow Scarlet Aaron Shingler and British & Irish Lions Justin Tipuric, Ross Moriarty and Taulupe Faletau.
Aled Davies, Gareth Davies and Rhys Webb are named as the scrum-halves with Dan Biggar, Rhys Patchell, Rhys Priestland and Gareth Anscombe as fly-halves. Owen Watkin and Hadleigh Parkes, who both made their debut last autumn, feature alongside Owen and Scott Williams.
Worcester wing Adams is named alongside Hallam Amos and Steff Evans along with Lions quartet George North, Liam Williams, Alex Cuthbert and Leigh Halfpenny.
Rob Evans (Scarlets) (20 Caps)
Wyn Jones (Scarlets (5 Caps)
Nicky Smith (Ospreys) (16 Caps)
Scott Baldwin (Ospreys) (34 Caps)
Elliot Dee (Dragons) (2 Caps)
Ken Owens (Scarlets) (52 Caps)
Tomas Francis (Exeter Chiefs) (26 Caps)
Samson Lee (Scarlets) (34 Caps)
Dillon Lewis (Cardiff Blues) (2 Caps)
Adam Beard (Ospreys) (2 Caps)
Bradley Davies (Ospreys) (57 Caps)
Seb Davies (Cardiff Blues) (3 Caps)
Cory Hill (Dragons) (10 Caps)
Alun Wyn Jones (Ospreys) (113 Caps) (CAPT)
James Davies (Scarlets) (*Uncapped)
Taulupe Faletau (Bath) (70 Caps)
Ellis Jenkins (Cardiff Blues) (5 Caps)
Ross Moriarty (Gloucester) (17 Caps)
Josh Navidi (Cardiff Blues) (7 Caps)
Aaron Shingler (Scarlets) (13 Caps)
Justin Tipuric (Ospreys) (52 Caps)
Aled Davies (Scarlets) (5 Caps)
Gareth Davies (Scarlets) (27 Caps)
Rhys Webb (Ospreys) (31 Caps)
Gareth Anscombe (Cardiff Blues) (11 Caps)
Dan Biggar (Ospreys) (60 Caps)
Rhys Patchell (Scarlets) (5 Caps)
Rhys Priestland (Bath) (50 Caps)
Hadleigh Parkes (Scarlets) (1 Cap)
Owen Watkin (Ospreys) (2 Caps)
Owen Williams (Gloucester) (3 Caps)
Scott Williams (Scarlets) (51 Caps)
Josh Adams (Worcester Warriors) (*Uncapped)
Hallam Amos (Dragons) (15 Caps)
Alex Cuthbert (Cardiff Blues) (47 Caps)
Steff Evans (Scarlets) (5 Caps)
Leigh Halfpenny (Scarlets) (74 Caps)
George North (Northampton Saints) (69 Caps)
Liam Williams (Saracens) (45 Caps)