Short Answer 
Julia Butters played Anna-Kat in ‘American Housewife’ for four seasons before leaving for other opportunities, notably after her role in ‘Once Upon a Time in Hollywood.’ Following her departure, Giselle Eisenberg was cast to take over the character in the fifth season, allowing for the portrayal of Anna-Kat’s evolving age and personality.
Step 1: Julia Butters’ Role and Departure
In the popular TV show ‘American Housewife’, Julia Butters played the character Anna-Kat Otto for four seasons. However, she left the show to pursue other opportunities, especially after gaining attention for her performance in the film ‘Once Upon a Time in Hollywood’. Her departure marked a significant change in the show.
Step 2: Recasting of Anna-Kat
After Julia Butters’ exit, the role of Anna-Kat had to be recast to maintain the character’s presence in the show. Giselle Eisenberg took over the character starting from the fifth season. This transition was essential for the continuation of Anna’s storyline and allowed for new dynamics within the show.
Step 3: Evolving Character Dynamics
The recasting aligned with the natural progression of the character as young actors often experience considerable growth that affects their performance. As Anna-Kat matured, the show’s creators needed a younger actress who could better represent Anna-Kat’s evolving age and personality. Eisenberg was chosen for her suitability in portraying this new phase, enhancing the audience’s connection to the character.