The number 14 was previously worn by Bachar Houli, who won three premierships with the club across his illustrious career.
Also making the move from the Giants at the conclusion of the season, Hopper will wear a new number in 2023, claiming the number 22 in yellow and black.
The 25-year-old previously wore number 2 across his time at the Giants, in which he played 114 games following his debut in 2016.
The 22 jumper was previously worn by Josh Caddy, who won flags with the Tigers in 2017 and 2019.
Both Taranto and Hopper joined the club in October's draft period, with the club set to welcome more new recruits following the upcoming national draft.