Williams Street (formerly known as Ghost Planet Industries after Space Ghost's home base) is a division of Cartoon Network, which is owned by Turner Broadcasting, an operational unit of Time Warner. The studio mainly produces animated series. These shows air on Cartoon Network as a separate network for ratings purposes. Adult Swim is produced and programmed by Williams Street. Keith Crofford and Mike Lazzo oversee operations for the studio building.

The name originates from the location of the studios (which double as the home office for Adult Swim) on Williams Street in Atlanta, Georgia, in proximity to the current offices of Ted Turner-founded WTBS, CNN, and the Cartoon Network itself.

The building seen in their logo is the original concept of the "animated" Ghost Planet Industries building, which was later rendered in 3D for Space Ghost Coast to Coast and Toonami's introductions. The real-life studio looks much different, as it has an old TBS logo on the front and is much longer, and more elevated in the middle. The studio, on Williams Street in midtown Atlanta, is directly across the Downtown Connector from TBS's corporate headquarters.

The audio clip used in this logo bumper was lifted from actor Jack Webb's production company Mark VII Limited, where a hammer is used to hit a stamp to produce the "Mark VII Limited" logo.

In February 2007, Williams Street and Adult Swim teamed up with the independent hip-hop label Definitive Jux to produce an animated video for El-P's track "Flyentology" and release a compilation album titled Definitive Swim for free download, featuring tracks from most of the label's artists.