Get ready, Heroes fans in Canada. You're getting close to your only chance to meet a quartet of stars from your favorite show during their worldwide tour.

At noon on August 31, at Toronto's Yonge-Dundas Square, the following four cast members will descend on hockey's homeland:

1. Zachary Quinto
2. James Kyson Lee
3. Noah Gray-Cabey
4. Dania Ramirez

These stars will greet fans and autograph copies of the Heroes: Season One DVD at the special event, hosted by ET Canada's Rick Campanelli.

Fans can submit questions for the actors at globaltv.com.

The spotlight will be on Quinto, who has signed on to play Spock in JJ Abrams' upcoming Star Trek XI.

Ramirez joins the cast this season as Maya Herrera, a woman plagued by a threatening ability that forced her and twin brother Alejandro to flee their homeland for America.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.