If you want to record your own voices or even sound effects for your brickfilms you will of course require a microphone. Audio recording for animations typically takes place separately to filming meaning that most brickfilmers use USB microphones.
Blue Microphones have a wide selection of high-quality microphones which are widely used for brickfilms, their most popular being the Blue Snowball which is currently used by brickfilmers such as Pritchard Studios and Annoying Noises Productions.
The Snowball is seen as the 'entry' model of Blue's microphones and they also produce other more expensive and feature packed cardioid microphones such as the:
Logitech's microphones are also popular amongst brickfilmers due to their low cost and wide availability. Their products such as the USB Desktop Microphone tend to be used by those wanting to spend the least amount of money. Logitech are also the producer of the microphones included with the video games Rock Band and Guitar Hero. Despite their intended purpose for use with their respective video games these are actually fully compatible with Windows and useful if you do not have the funds to buy a dedicated microphone. In the past they have been used by brickfilmers such as Forrestfire101.
One of the biggest issues with microphones is the 'popping' sounds caused by the mechanical impact of fast moving air on the microphone usually when words involving the letter 'p' are spoken. The audability of these popping sounds can be greatly reduced by using a pop filter. Pop filters also protect against the accumulation of saliva on the microphone element which due to being corrosive can cause long time damage to the microphone.