Who created jessie character in toy story?

Quick Answer
Jessie was created by John Lasseter, Pete Docter, Ash Brannon, and Andrew Stanton for the Toy Story franchise, with the idea for a female character suggested by Nancy Lasseter.
Explanation
Jessie, the cowgirl rag doll, was created for the Toy Story franchise by a team of Pixar filmmakers including John Lasseter, Pete Docter, Ash Brannon, and Andrew Stanton. The character was introduced in Toy Story 2 as a central figure, with the creative team aiming to expand representation by adding a female character to the series. The idea for introducing a female character was specifically suggested by Nancy Lasseter, who influenced the development direction. Jessie's design and personality were shaped by the combined efforts of these creators, making her a memorable and integral part of the Toy Story universe across multiple sequels.