Unforgettable - Season 4 May 2026

: Poppy Montgomery (Carrie Wells), Dylan Walsh (Al Burns), and James Hiroyuki Liao (Jay Lee) were the only core regulars to return. New Regulars :

Due to the gap in production, many original actors' contracts had lapsed, leading to a substantial "revamp" of the supporting cast. Unforgettable - Season 4

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 : Poppy Montgomery (Carrie Wells), Dylan Walsh (Al

The season continued to follow Carrie Wells, a detective with hyperthymesia (perfect recall), as she and her partner Al Burns solved complex crimes. The season premiered on November 13, 2015, airing

: The romantic tension between Carrie and Al remained a central theme, though they prioritized their professional relationship.

: Plots ranged from investigating high-stakes video game corporate espionage to a cold case involving con artists and a secret aerospace engineering mission.