Nick Robertson
Another fairly recent World Junior player for the Leafs, Robertson represented the Red, White, and Blue at the 2020 tournament.
Robertson scored 5 points in 5 games, including a beautiful goal vs Team Canada on opening day.
He was also eligible to play in the 2021 World Juniors, but the Leafs elected not to release him.
Calle Jarnkrok
Calle Jarnkrok represented Team Sweden in the 2011 tournament, scoring a very solid 5 points in 6 games.
David Kampf
The final entry on this list in terms of forwards, David Kampf represented Team Czechia in the 2014 and 2015 World Juniors.
While neither team advanced past the quarterfinals, Kampf played well, even being named an assistant captain in 2015.
With all the forwards now done, let's look to the defensemen and goaltenders.
Morgan Rielly
Toronto Maple Leafs defenseman Morgan Rielly represented Team Canada at the 2013 World Juniors, scoring 3 points in 6 games.
Canada finished the tournament with a disappointing 4th-place result.