Rough Draft Studios, Inc. is an American animation production studio based in Glendale, California, with a second studio in Glendale and its sister studio Rough Draft Korea located in Seoul, South Korea. The studio was founded in Van Nuys, Los Angeles by Gregg Vanzo in 1991.

Williams Street Productions, LLC, d/b/a Williams Street and formerly known as Ghost Planet Industries, is an American animation and live action television production studio owned by the Warner Bros. Television Studios division of Warner Bros., a unit of Warner Bros. Discovery. The studio is the in-house production arm of Adult Swim. Mike Lazzo and Keith Crofford oversaw operations for the building for most of its existence.