Er... this one related more to a series of games, but I hate how in the sequel for Tales of Symphonia, among other things, they replaced most of the first game's stellar vocal cast. Now, there are some good voices in the sequel, but I'm eternally miffed that I could have had Scott Menville and Johnny Yong Bosch, two of my all-time favorite voice actors, in the sequel to one of my all-time favorite RPGS!
GGGGGGGGGGGGGGGGGAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHHHHHHHHHHHHHHHHHHHHHH!!!!!!!!!!!!!!!!
...Sorry, I always get a bit of nerd rage just thinking about it...