Welcome to Ken's Homepage! Ken is a male in Déjà-vu's "K" Litter. Once he comes of age, he will go to his new family in Poland. Biography: Ken (Ken Carson) is a Mattel toy doll introduced by Mattel in 1961 as the fictional boyfriend of toy doll Barbie introduced in 1959. Similar to his female counterpart, Ken had a fantastically fashionable line of clothing and accessories. In the Barbie mythos, Ken and Barbie met on the set of a TV commercial in 1961. Mattel has never specified the precise nature of their relationship. Since his debut, Ken has held at least forty occupations.