Kenneth Sean Carson, or only known as Ken, is one of the main characters of the Barbie franchise, created by the toy company Mattel in 1961.
Ken is the Barbie's boyfriend, he's often appears as a teenager or as a young adult. Since the 70s he has changed a lot his visual having been brown haired, red haired and currently is blonde like Barbie. In the animated films he often appears as an ally and love interest of Barbie, almost always with a different look and playing the role of a different character every movie.
In the webcartoon Barbie: Life in the Dreamhouse he has a better development of his personality. He is portrayed as one of the dolls residents of Malibu. His love and obsession for Barbie is even bigger and more exaggerated than in the movies. He practically serves all desires of his girlfriend about to go away inventing technological devices and risking the danger just in order to let Barbie happy, even though she did not even ask him to do that.
He has the greatest enemy your neighbor Ryan who is also in love with Barbie and tries to woo her when Ken is not around. In addition the Barbie's rival, Raquelle is also in love with Ken.