Wales head coach Steve Tandy has finalised a 39-strong playing group for the forthcoming Nations Championship, with the squad presenting a blend of experienced internationals and uncapped hopefuls.
The selection includes three players yet to earn senior caps, alongside a number of high-profile omissions from the initial squad announcement.
Leicester Tigers pair Tommy Reffell and Olly Cracknell have been left out despite their consistent performances in the Gallagher Premiership this season.
The back-row positions have also been affected by the absence of Toby Faletau, who recently resumed playing duties with Cardiff after recovering from injury sustained during Champions Cup competition the previous weekend.
Saracens centre Nick Tompkins has similarly not been included in the finalised group.
Faletau will mark his 36th birthday in November and has expressed his intention to feature at a fourth consecutive World Cup tournament scheduled for Australia the following year.
Barrett, Hope and Owen have each been handed their inaugural senior international selections.
Dragons scrum-half Hope enters the setup following a knee injury sustained by Ospreys number nine Kieran Hardy, which is expected to result in an extended period on the sidelines.
Owen has earned his opportunity after demonstrating strong form for the Dragons throughout the United Rugby Championship campaign.
Ben Thomas has been ruled out due to a calf complaint sustained during club duties, though Scarlets fly-half Costelow has been named despite picking up an injury during his side’s most recent fixture against Newcastle.
Belcher, Francis, Griffin, Hennessey and Jenkins are all restored to the playing group after being unavailable during the July round of the competition.
Additionally, Basham, Davies and Dyer have earned recalls to national team duties.
The squad carries an average age of 27 years, with 14 members currently contracted to English clubs and one plying their trade in France’s Top 14 competition.
The group will convene ahead of their three consecutive home fixtures at the Principality Stadium, with the campaign concluding at Twickenham’s Allianz Stadium during finals weekend.