In 'Barbie - The Movie,' comedian Kate McKinnon plays Weird Barbie, who possesses secret knowledge about the dolls' connection to the children who play with them. The concept behind the character is that she has been subjected to rough play, which explains her ability to do a split, her uneven hairstyles, and her generally cynical outlook on life. Director Greta Gerwig drew inspiration from the novel The Giver and dressed her in bright clothes, which contrasts with the pastel colors of Barbieland. This is similar to the Receiver of Memories character in the novel, the only one who sees life in color.

The limited-edition Signature doll, which became available on August 18th, 2023, was designed by Javier Meabe as part of a new product collection inspired by the movie.