Fries will rock No. 75 in the NFL after wearing No. 71 during his Penn State career.
Oweh's NFL squad confirmed his new number Wednesday afternoon.
The Penn State "Linebacker U" tradition will carry on in Dallas.
Mills is the second prospect to commit to Penn State's class of 2022 in just five days.
Early indications show Walker as a first-round pick in 2022.
Many former Penn State football stars are set to earn chances at playing time at the next level.