The cast has seen significant changes over 24 years, though some figures remain iconic fixtures:

Following Meloni's exit, the show introduced new regulars like Rollins and Amaro and focused more on Benson's leadership and personal life.

: Introduced as a detective in Season 16, later becoming an Assistant District Attorney. Seasonal Breakdown Highlights Key Developments Early Years (Seasons 1–12)

: The unit's captain for the first 15 seasons.

Benson reaches the rank of Captain. Season 24 features major shifts, including the marriage of Rollins and Carisi and Rollins' departure.