The fourth season of marked a major turning point for the series, characterized by a move to a new network and a significant cast overhaul . Originally a CBS procedural, the show was picked up by A&E for its final 13-episode run after being canceled by its original network twice. Production and Network Transition
After CBS passed on a fourth season in 2014, Sony Pictures Television successfully shopped the series to A&E. The season premiered on November 13, 2015, airing back-to-back episodes on Friday nights. The move was partly driven by the show's strong international performance, which allowed for a more affordable licensing fee for the cable network. Major Cast Changes Unforgettable - Season 4
Despite its "death-defying" history, the series was officially canceled for the third and final time on February 16, 2016, shortly after the Season 4 finale aired. A&E opted not to order a fifth season, and unlike previous cancellations, no further efforts were made to find a new home for the show. The fourth season of marked a major turning
as Captain Sandra Russo, the team’s new boss. Alani "La La" Anthony as medical examiner Delina Michaels. E.J. Bonilla as Detective Denny Padilla. The season premiered on November 13, 2015, airing
: Plots ranged from investigating high-stakes video game corporate espionage to a cold case involving con artists and a secret aerospace engineering mission.