In development of Maokai, the model for his Sapling Toss was not completed before testing him out and was instead represented by miniature versions of the current champions' models walking around and blowing up on enemies.
The original voice actress for Karma was Danielle McRae, who happened to be the voice actress of Painwheel. Unfortunately, when Riot decided to rework Karma in terms of gameplay and graphics, they replaced her with a different voice actress, but they kept Danielle's voice work of Karma for the "traditional" skin.
Ziggs and Rumble are voiced by none other than InvaderZIM and Raz.
Why Fandom Can't Have Nice Things: When Riot gave people a boost to get a Corki skin and reduced it in price...the people who missed it screamed so loudly they've since been very careful about that.
The developers don't often post in the forums because the average post is usually about as negative as the temperature in Antarctica.
Recently, a code to get a free skin for Caitlyn as well as the champion if you didn't already have her was put in the November issue of PC Gamer. A lot of people are reporting that people are going into stores and copying down codes printed in the magazine so they didn't have to pay for them. Several people have predicted that they won't be doing this anymore, even though PC Gameris combating this by having people email or call in with a proof of purchase to get another code.
More recently, when Annie's visual update was ready to be patched in, Riot announced that they'd release the Goth Annie skin for a limited time for players to buy who didn't purchase the Champion bundle it's normally exclusive to. This resulted in a massive outcry from players who valued the exclusivity of the skin, causing Riot to promptly retract the offer. Riot is now considering alternatives to such offers, but those who were looking forward to buying Goth Annie are going to have to keep waiting to complete their collections.
Xypherous originally intended Nautilus to have an ultimate that involved picking up an enemy champion and spinning them around him. It, regrettably, simply did not pan out. He also wanted Nautilus to have a base movement speed even lower than the bottom-of-the-barrel 300 Nautilus has right now, but said they wouldn't let him make it any lower.
Wukong's kit was originally completely different, and stated to be very complex.