Who played Judy Garlands double?

Judy Garland's double in many of her film performances was the actress and stunt double, who often went uncredited. However, in the biographical film "Judy" (2019), actress Jessie Buckley portrayed a younger version of Garland, while Renée Zellweger played the lead role as Garland in her later years. For specific stunts and performances, various doubles were used throughout her career, but they are not widely recognized by name.