In the first (and only) season there are 26 half-hour episodes. They aired in Japan from April - September 2006.

There is currently only one season of Ouran. At the moment, there is not enough material from the manga to develop a second season, and it will be a long time until there is. Even if there is eventually enough material, it is still unlikely, as the show was created and resolved with the idea that only one season would be made. However, there are petitions online to try and get a second season made.

Yes, Funimation have secured the rights to develop an American dub. It will be released in October 2008. the voice actors are: Fujioka Haruhi - Caitlin Glass. Tamaki Suou - Vic Mignogna. Kyouya Ootori - Jay Michael Tatum. Hikaru Hitachiin - Todd Haberkorn. Kaoru Hitachiin - Greg Ayres. Takashi Morinozuka - Travis Willingham. Mitsukuni Haninozuka - Luci Christian. Ranka Fujioka - Mike McFarland . Umehito Nekozawa - Patrick Seitz.

The characters and settings are generally the same, and the anime uses themes and plot lines that were taken from volumes 1 - 9 of the manga. Some episodes play out almost exactly the same as the manga (e.g episode 8), most take and use the basic plots but with various differences (e.g episode 21), and a few have no obvious correlation (e.g episode 25). There are several plot lines from the manga that were not used in the series.

There are several plot lines that involve the Host Club's interactions with other clubs. These include the Dark Magic Club and the Newspaper Club, as well as the Zuka Club from St. Lobelia's Girls Academy.

Amazon.com and Viz.com (the homepage of viz media, the distributor) both sell English versions of volumes 1 - 10.