Canadians and Former (and Current!) Toronto Blue Jays in the 2022 Playoffs
Toronto Blue Jays
Eliminated by the Seattle Mariners in the AL Wild Card Series on October 8th, 2022.
The entire roster!
New York Yankees
Eliminated by the Houston Cheaters in the AL Championship Series on October 24th, 2022.
Chad Green (drafted)
Tim Locastro (drafted)*
Eliminated by the New York Yankees in the AL Divisional Series on October 18th, 2022.
Mike Barnett (coach)
DeMarlo Hale (coach)
New York Mets
Eliminated by the San Diego Padres in the NL Wild Card Series on October 9th, 2022.
Atlanta's Baseball Club
Eliminated by the Philadelphia Phillies in the NL Divisional Series on October 15th, 2022.
Travis d'Arnaud (drafted)
Sal Fasano (coach)
Tomás Pérez (coach)
Kevin Seitzer (coach)
Alex Anthopoulos (GM)
St. Louis Cardinals
Eliminated by the Philadelphia Phillies in the NL Wild Card Series on October 8th, 2022.
Turner Ward (coach)
Stubby Clapp (coach)
Los Angeles Dodgers
Eliminated by the San Diego Padres in the NL Divisional Series on October 15th, 2022.
Phil Bickford (coach, drafted)
Ryan Noda (drafted)*
Kendall Williams (drafted)*
Nick Frasso (drafted)*
Clayton McCullough (coach)
Defeated by the Houston Cheaters in the World Series on November 5th, 2022.
Aaron Nola (drafted)
Noah Syndergaard (drafted)
Vinny Nittoli (minors)*
Eliminated by the Houston Cheaters in the AL Divisional Series on October 15th, 2022.
San Diego Padres
Eliminated by the Philadelphia Phillies in the NL Championship Series on October 23rd, 2022.
Joe Musgrove (drafted)
Austin Nola (drafted)
Tampa Bay Rays
Eliminated by the Cleveland Guardians in the AL Wild Card Series on October 8th, 2022.
Kevin Cash (manager)
Toronto Blue Jays: Vladimir Guerrero Jr., Otto Lopez*, Zach Pop, Jordan Romano
Cleveland Guardians: Cal Quantrill, Josh Naylor
Seattle Mariners: Matt Brash, Abraham Toro
St. Louis Cardinals: Tyler O'Neill
Atlanta's Baseball Club: Mike Soroka
Los Angeles Dodgers: Rob Zastryzny, Freddie Freeman
Philadelphia Phillies: Rob Thomson
Italics: Not in the playoffs anymore.
* Not currently on the playoff roster. This could be due to injury, not going to be part of the playoffs, or not going to be part of whatever series is happening now. If they play a game in the playoffs, the asterisk comes off. Every player listed here played at least one game on the Major League team in the 2022, so they'd get a World Series ring if their team won (technically if they play one game in 2022 for whichever team wins the World Series, even if it's not their current team, they get a ring).
Sources: Wikipedia (going through each team's roster at the end of the season to see if they played with the Blue Jays before); each team's Twitter account for the team roster on the date of the start of each series; 2022 MLB Canadians.