2023: Blue Bombers

Hallett has not missed any action in his four seasons with the club and has dressed for 68 regular season games and nine playoff contests, including the last four Grey Cups, while becoming a rotational player at safety on defence and regularly contributing on special teams. He led the Blue Bombers with 20 special teams tackles in 2023, which ranked third in the CFL.

He signed a two-year contract extension to remain with the club on February 1, 2024.

2022: Blue Bombers

Hallett took major strides in ’22, dressing for every regular-season game plus both the Western Final and Grey Cup. He started six games at safety for the club for the injured Brandon Alexander, including his first career start on July 30th in Calgary in what was a 35-28 Blue Bombers win.
His first career interception came in the fourth quarter of the Labour Day Classic victory in Regina over the Saskatchewan Roughriders.
Hallett finished the year with 24 defensive tackles, 11 more on special teams, the pick on Labour Day, and a forced fumble.

2021: Blue Bombers

Hallett built on his rookie campaign with a solid 2021 season that established him as one of the top special-teams players in the CFL while playing a important role in helping the club capture a second Grey Cup championship. Hallett had 16 tackles on the kick-cover units in 2021, a total which tied for the fourth-highest total in the league, and  Over his first two years with the Bombers only one player registered more tackles on specials than Hallett — all-time leader Mike Miller, who had 50. He also took some snaps on defence, chipping in with seven tackles while also managing to force one fumble.
Hallett agreed to a two-year contract extension with the club on January 3, 2022.

2019: Blue Bombers

The Bombers found some gold at the end of the 2019 CFL Draft, Hallett among them. Selected in the seventh round, 61st overall, Hallett dressed for all 18 regular-season games and two of the three playoff contests — missing the Western Semi-Final due to injury. He was solid on special teams, finishing with 13 tackles while adding a forced fumble and a fumble recovery. His 13 special-teams tackles ranked third on the club.

College:

Hallett Appeared in 28 games with the Varsity Blues over six seasons. He played in just three games in 2018 because of injury but recorded 13 tackles, one forced fumble, one fumble recovery and one touchdown. In 2017, he led the Blues and ranked fourth in the OUA with 60 tackles, adding one sack, two fumble recoveries, one interception and five break ups.