Ben 10: Ultimate Alien is an American animated television series – the third entry in Cartoon Networks Ben 10 franchise created by team Man of Action (a group consisting of Duncan Rouleau, Joe Casey, Joe Kelly, and Steven T. Seagle), and produced by Cartoon Network Studios.\r
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It was slated to premiere after the series finale of Ben 10: Alien Force on March 26, 2010, but actually premiered on April 23, 2010, in the US and in the UK; and Latin America on October 10, 2010, coincidentally the date was 10/10/10, and at 10 a.m.[clarification needed]\r
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In Canada, the series started airing on September 12, 2010, on Teletoon.\r
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The series finale finished on March 31, 2012 with the two-part episode, The Ultimate Enemy, being in memory of series developer and producer Dwayne McDuffie, who died during the production of the series
