[6] Following Adam's move back to the injured list and subsequent trade to the BC Lions, Alexander became the team's third-string quarterback behind Trevor Harris and Dominique Davis, and dressed in the last 12 regular season games.

[4][7] He dressed in all three post-season games for the Alouettes that year and while he did not record any statistics, he shared in the team's championship victory over the Winnipeg Blue Bombers in the 110th Grey Cup.

[4] Alexander began the 2024 season as the third string quarterback again, but was elevated to the backup role for the week 8 game against the Roughriders following an injury to Fajardo.

[7] After Fajardo returned from injury, he started each game until the Alouettes clinched first place in the East Division.

[10] In total, he dressed in all 18 regular season games where he completed 105 of 151 pass attempts for 1,347 yards with six touchdowns and two interceptions.

[11] On November 26, 2024, it was reported that Alexander had signed a three-year contract extension with the Alouettes, indicating a commitment by the team to make him the starting quarterback for 2025.