The studio is the in-house production arm of Adult Swim (the programming block on Cartoon Network).

[4] From November 27, 2019 to July 1, 2020 and since May 13, 2022, Ouweleen was named president of The Cartoon Network, Inc., which also oversees Adult Swim.

Although no longer its main purpose, to this day, Williams Street houses all the show tapes for Turner Networks.

Although Cartoon Network was run at Hanna-Barbera Studios at the time, certain duties were eventually controlled by the trio at Williams Street.

Towards the end of '93, the three mustered up courage to approach Ted Turner with their ideas for Cartoon Network original programming.

According to Lazzo, they were clearly told that unless CN started making more money for Turner, they wouldn't be allowed funding or a chance.

Because they felt it would fit, they paired it with Mike Lazzo's idea of a satirical talk show with a clueless host asking guests a stream of stupid questions.

Soon the series was acquiring its first C and D-list celebrity guests, small animation and writing crew, and voice actors.

This marked Cartoon Network's first original series and the first animated talk show in history.

Turner commissioned GPI to produce some sort of lighter version for TBS, due to a need for children's programming.

After two seasons, TBS decided to cancel all kids' programming, following the trend of TNT and USA.

The current name of the company originates from the location of its headquarters building (which is also the home office for Cartoon Network and Adult Swim) at 1065 Williams Street NW in Atlanta, Georgia near the current offices of TBS and TNT on Techwood Drive.