Wow, this is pretty awesome! I used to watch quite a bit of Frasier while it was on, but I had no idea there were so many celebrity cameo voices throughout the series! They got EVERYBODY! For a fun game, just listen to this video first and write down a guess for each voice, then watch it and see how many you got right. And as a bonus, the clips are in chronological order, so you can watch Kelsey Grammer age!