Ash vs Evil Dead was canceled before season 4, disappointing fans everywhere. The Evil Dead sequel series gave viewers a look into the later life of horror icon Ash Williams (Bruce Campbell), and by transitioning the franchise into a TV series, the creators expanded the Evil Dead mythos across three wild and hilarious seasons. The series ramped up the comedic side of the Evil Dead franchise, along with an ample amount of blood and gore. Ash vs Evil Dead excelled at showing Ash in a new light, especially with his new trusty sidekicks, Pablo (Ray Santiago) and Kelly (Dana DeLorenzo).

https://screenrant.com/ash-vs-evil-dead-season-4-cancelled-reason/