James missed Wales’ opening Nations League games against Turkey and Montenegro in September and the trip to Iceland and homecoming against Montenegro last month with a hamstring injury.
He returned to Leeds on October 18 and has started the Championship side’s last two games, scoring in the 3-0 win over Plymouth last Saturday.
James’ Leeds team-mate Joe Rodon will earn his 50th cap for Wales if the defender plays in both games this month.
Colwill’s call-up to the senior team comes as he has been receiving rave reviews during Cardiff’s resurgence under interim manager Omer Riza this season.
The 22-year-old attacking midfielder, who featured in the 2022 World Cup, was not initially in Bellamy’s first Wales team in September but was promoted from the under-21s as a late call-up.
However, he received no game time and returned to Matty Jones’ under-21 team for last month’s failed Euro 2025 qualifying climax.
The Wales squad also includes Harry Wilson, who scored twice in stoppage time on Monday night as Fulham beat Brentford 2-1.
It was only the sixth Premier League appearance this season for Wilson, 27, all as a substitute, as Bellamy has had to deal with a lack of domestic game time for several members of his squad.
The former Wales captain has raised expectations with his unbeaten start as head coach following the sacking of Robert Page in the summer.
After a goalless draw at home against Türkiye in the opener, they enjoyed home and away wins against Montenegro and a 2-2 draw in Iceland.
While Bellamy’s team travels to Turkey with the prospect of winning the group still in their own hands, defeat would not end their hopes of returning to the A division of the Nations League.
There is also a play-off route to promotion if they finish second, while finishing third would open up the possibility of a play-off in March to avoid relegation.
