To add a few: California Grill, the luau at the Poly & I am not 100% but I would imagine most (if not all) signature restaurants require a credit card. These would include: Jiko at the AKL, Flying Fish Cafe at the BW, Citricos and Narcoosee's at the GF, Artist Point at the WL, Yachtsman Steakhouse at the YC and the Hollywood Brown Derby at DHS.
Happy dining!!