Wreck It Ralph
Marauder - Wreck-it Ralph
Rebuild* - Fix-it Felix Jr
(*especially NoMoreFun's version:
http://forum.dominionstrategy.com/index.php?topic=9976.msg337262#msg337262)
Baron - Gene, Leader of the Nicelanders
Rats - the cy-bugs
Tourniment (or Highway) - The Candy Crush Races
King's Court - Vanellope Von Schweetz (because King's Court makes other cards rediculously fast and broken and I consider the card to be a glitch in the game and never play with it if I can help it.)
Throne Room - King Candy (he's a king and also a racer)
Turbo - Rogue
Taxman - Sour Bill
Vagrant - Q*Bert
Beggar - Q*Bert's friends, Coily, Ugg, Slick, and Sam
I included eleven because I wouldn't actually play with King's Court (even though I used it for one of the best characters. I didn't think of any that fit her better). I never use Tourniment if I can help it either, but I included an alternate card for the races.
There's also a fan-made card that would be appropriate to sub in sometimes:
Junkyard - Ralph's home.