The Hamilton Tiger-Cats have signed American quarterback Harrison Frost.
Frost returns to the Tiger-Cats after spending the 2026 UFL season with the St. Louis Battlehawks. The 27-year-old appeared in four games, made three starts, and completed 57-of-107 passes for 719 yards and seven touchdowns, adding one rushing touchdown.
He previously spent two seasons with Hamilton (2024-25), appearing in 17 regular-season games and completing 8-of-12 pass attempts (66.7%) for 95 yards and one touchdown. Frost also spent time with the XFL’s Seattle Sea Dragons in 2023.
The 6-foot-1, 194-pound native of Kennesaw, Georgia, concluded his collegiate career at West Georgia after beginning at Mercer University. Across 54 collegiate games from 2018-22, Frost completed 635-of-1,049 pass attempts (60.5%) for 7,777 yards and 59 touchdowns, including 6,730 passing yards and 50 touchdowns over two seasons at West Georgia.
The move comes after franchise pivot Bo Levi Mitchell was stretchered off early in the third quarter of Hamilton’s 14-13 loss to the Winnipeg Blue Bombers in Week 5 after suffering a serious ankle injury.
The team also recently signed fellow American quarterback Jarret Doege, as Hamilton’s quarterback room now features Frost, Doege, Canadian Tre Ford, and Week 6 starter Jake Dolegala.
