We seen the Cars 2 days in a row nearly at the same spot in DCA on our last trip, once was across from golden dreams, the other time they were coming out from the big doors by burger invasion. It was really cool to see them driving down the street
As for DCA characters, we seen: Meet the Robinson characters, The Incredibles, Sulley from Monsters Inc, Stitch, Goofy, Goliath (from Jojos circus ds 5 was thrilled!) Alice (hubby was thrilled

)erm that's all I can think of right now. They were almost all at the backlot area.
DL chars: Mickey, Minnie, Donald, Goofy (all in their yomd outfits) in town square. Mickey, Minnie, Goofy, Pluto, Donald (toontown), Alice, Madhatter (in coca cola corner), Hook, Peterpan, Pinnochio, Fairy godmother, tigger, chip, minnie, max (at minnie & friends char breakfast) Capt Jack was out in New Orleans Square, We caught Dale out near city hall, Cruella was nearby as well but the kids wouldn't go near her, Pooh & Eeyore were in critter country, and we seen tink, belle, beast, timon, fairie (from cinderella I think), cinderella, sleeping beauty, Ariel was absent the day we seen the parade...

those were all in the parade of dreams...
We were on a mission to fill up our autograph books, which we did plus had to buy a small one to catch the extras lol. We did most of the meets & 2 character breakfasts which had about 5 or more characters each. All these were out the week of 4-13 to 4-20. Also a good idea is to stop by city hall in the morning if you have a particular char you'd like to meet and they can tell you where they will be & when. We had to track Alice down this way since we got her pic on the first day but the pen broke and we couldn't get her autograph, we finally got her autograph to go in our book in dca the next day