Well, I have time on my hands, so I'll get the ball rolling. First off, I'll state that pretty much all the cast (or most of em) are canadian. Several have appeared in a show called 6Teen. Here are the list of shows & the character in which the actor voices (hit cast to see the names of them)
Chris: Riverdale, The Tournament, The Tuxedo, La Femme Nikita, Degrassi
Gwen: Get Ed, Resident Evil Apocalypse
Heather: Show Me Yours, & cameos in Kevin Hill, Judging Amy, Providence, Charmed, Gideon's Crossing, Austin Powers 2, Lonesome Dove outlaw years, Are u Afraid of the Dark
Tyler/Cody/Ezkiel: Blue Collar TV, Foxworthy's Big Night Out
Beth: Are U Afraid of the Dark, La Femme Nikita, Mutant X, the Border
Harold: comedian with his own stand up show
DJ: Harvard Man
Bridgette: Scarlett Letter, Instant Star
Leshawna: Cyberchase
*& Justin: You Cant do that on TV,& Degrassi
Sorry for not deciphering between tv or movies, or if you don't know these shows. But Im sure some of you have. Relive your thoughts on them. Sorry, no pics either. Hey theres always Wiki