Born in Boldon, Roman made 19 appearances at U18 level last season, making his league debut at that level aged 15 while making three outings in the UEFA Youth League for Newcastle's U19s in 2025/26.
Dowell, who cites Manuel Neuer as his footballing idol, is capped four times by England at U17 level, making his international debut for the Young Lions in September's 7-5 friendly win against Germany.
The promising 'keeper made his first start for United's Under-21s during a National League Cup clash against Boreham Wood at the age of 16.