Therrian Alexander III holds the RCB · Starter spot in BYU Cougars’s cornerback room. Where he sits among the room’s front-line roles:

Therrian Alexander III is a 6'2", 175-pound right cornerback for the BYU Cougars and a junior in 2026. A three-star recruit from Ellenwood, Georgia, Alexander was ranked 1026 overall in the 2024 class. In 2025, he appeared in 31 total defensive plays, including 24 solo tackles, 3 tackles for loss, and 1 sack. He added 5 passes defended, 2 quarterback hurries, and 1 interception for 49 yards. Alexander remains on the roster as a returning defensive contributor.