Carl Squared, stylized as Carl<sup>2</sup>, is a Canadian animated sitcom which explores what would happen if a teenager had a clone. The concept of the series is a mixture of biological studies and normal teenage life. It aired for four seasons on Teletoon from August 7, 2005 to January 23, 2011. 65 episodes were produced.
Carl Crashman is a lazy 14-year-old who is only good at one thing: slacking. After a rough day and being tired of constantly doing things he hates, he was blogging on the Internet and complaining about his life when he accidentally ordered a clone from a spam e-mail using his fingerprint, a yearbook photo and a scabby bandage; Carl is shocked when an online cloning company sends him an exact clone of himself in a box. Carl names him C2. Even though C2 looks like Carl, talks like him (albeit with a higher-pitched voice), and walks like him, C2 is more ambitious, hard-working, and charming, much to Carl's advantage. Since C2 arrived, Carl has been slacking off a lot more. However, C2 often does the opposite to what Carl wants. Carl decides to keep C2 a secret from everyone else except his best friend Jamie James.
The show's theme song, a soundalike for O Rappa, depicts the initial arrival of C2 at Carl's house. There are two different versions of the theme songs, each version having a new opening sequence and slightly alternate lyrics. As of Season 2, the opening sequence includes more on how C2 was created in the cloning lab.
The show is divided into 4 seasons of 13 episodes each, with the exception of the first one, which includes 26 episodes. A number of episodes are specials and are not regularly aired; these are indicated.
There are 2 two-part episodes in the show, one in Season 2 and the other in Season 4. The Season 2 one was made as a contest; after the first part of the episode, Teletoon viewers were asked to vote online and by text messaging to determine who would be the winner out of the remaining 3 contestants, Carl, Jamie, and Skye. The winner was announced in the second part of the episode. The Season 4 one was made as a mystery; after the first part of the episode, Teletoon viewers were asked to go to the show's website and try to solve it. The solution was announced in the second part of the episode.
Carl<sup>2</sup> first aired on August 7, 2005 as a sneak preview of the first episode. However, regular airings of the show only started on September 3, 2005.
Development of the series began in 2002, with an expected budget of $450,000 per episode. At the time, the commissioning broadcaster was Family Channel, and it was uncertain whether the first season would have 13 or 26 episodes. Family remained the original network for the upcoming show well into 2003.
Teletoon's vice president of programming described the series as sharing a sense of humour with the popular earlier Teletoon original What's with Andy?.
Aside from Teletoon, in Canada, the series aired reruns on Cartoon Network. It has also aired on numerous other channels in over 100 countries. In Australia, the show was initially broadcast on ABC1 and ABC2, and later on ABC3 as well.
In the United States, it was shown on Animania HD, Kabillion and the Spanish-language channel áSorpresa!. In Latin America and Brazil, the series aired on Cartoon Network and HBO Family.
Some, but not all, of the first season was made available by the distributor Portfolio Entertainment on the company's YouTube channel on June 22, 2017. More episodes from the first and second seasons were added on September 13.
As of September 28, Amazon Video also carries the show via Kid Genius Cartoons Plus!, spanning the first two seasons and part of the third.
The entire series has been released on Tubi TV. However, the episodes are out of order.