Teen Mom UK Next Generation's cast from youngest to oldestThe Teen Mom UK spin-off introduces two new young mums as well as welcoming back some familiar facesView 6 Images New episodes of Teen Mom UK: Next Generation land every Tuesday (Image: MTV)A fourth series of Teen Mom UK spin-off Next Generation is now well underway. ‌The six-part series comes hot on the heels of Teen Mom UK series 13's conclusion, and introduces two new reality stars navigating the highs and lows of motherhood. For those catching up with the show or wanting to get to know the cast better, here's the lowdown on the young mums who appear in series four of Teen Mom UK: Next Generation from the youngest star to the oldest. Tigi Hasson, 17View 6 Images Tigi, 17, is the youngest cast member (Image: MTV )‌The youngest member of the cast this season is newcomer Tigi who is just 17 years of age. New episodes of Teen Mom UK: Next Generation series four air weekly on Tuesdays on Paramount Plus.