Klasky-Csupo was a studio located in Los Angeles that produced animated cartoons for American television. It was founded in 1982 by Arlene Klasky and Gabor Csupo.
Klasky Csupo was started in 1982 in the spare bedroom of a Los Angeles apartment where Klasky and Csupo were living while married. Klasky Csupo's first major work came in 1989, when they became the 'animation house' for the first three seasons of The Simpsons (after which Film Roman took over in 1992), Klasky Csupo had already produced the animated pilots for The Simpsons, as sketches on The Tracey Ullman Show.
Their next major series was Duckman for the USA Network. The show revolved around the home life and adventures of a dim-witted and lascivious private detective duck named Eric Duckman. The series ran from 1994 to 1997.
During the same time Nickelodeon released Klasky Csupo's second Nicktoon series, Aaahh!!! Real Monsters. During this time Klasky Csupo ended production on Rugrats. However, Klasky Csupo produced three new Rugrats specials between 1995 and 1996. The specials were so successful that the series was revived in 1997.
On December 23, 1998, CEO Terry Thoren concluded an eleven-month negotiation with Mercedes-Benz and moved the company into the state of the art studio in the heart of Hollywood on Sunset Boulevard and Vine Street.
In 2001, in honor of the Rugrats 10th Anniversary, Klasky Csupo released a two-part special entitled, "All Growed Up". The special featured the famous babies as pre-teenagers. It was popular enough that a series based on that special premiered in 2003. The series was put on hiatus in 2006 and officially cancelled in 2008. Several previously unaired in the US episodes aired on Nickelodeon in November 2007 and August 2008.
In May 2002, Klasky Csupo was accidentally credited as producers for two episodes of SpongeBob SquarePants, a hit show on Nickelodeon as they had their logo shown after the end credits. However, in 2006, it was remade to be said that United Plankton Pictures, Inc. was the producer of the two episodes, and their logo will be shown at the end of all future airings since 2006.
The company was also active in producing recorded music with the labels "Tone Casualties" and "Casual Tonalities." Gabor Csupo was a good friend of Frank Zappa and occasionally collaborates with Mark Mothersbaugh, who did most of the music for Rugrats.
Klasky Csupo also produced a number of projects in commercial advertising, including a series of direct-to-video features (The Wacky Adventures of Ronald McDonald) for the McDonald's fast food chain.
By 2004, Klasky Csupo shut down production on most of its shows, including Rugrats and in 2006, shut down production on all their shows except the new pilots they created.