On Law & Order: Special Victims Unit, Olivia Benson (Mariska Hargitay) has served as the show's people's detective since 1999. Benson was able to prosper and establish a career as a sex crimes investigator, which allowed her to take over as the unit's captain.
During Law & Order: SVU's 12th season, Kelli Giddish accomplished the unthinkable by joining a renowned television program. Despite the difficulty of the task, Detective Amanda Rollins won everyone over and rose to the status of a beloved Georgia peach.
During the seventh season of CSI: NY, Jo Danville (Sela Ward) made her triumphant debut, complete with a dead corpse.
Because of challenges in their personal lives, some detectives excel in their work, and Lindsay Messer was one of them.
Despite the fact that the programme was called Castle and that many people might believe it focused primarily on Richard Castle (Nathan Fillion), Kate Beckett was essential to its success.
Even though Horatio Caine (played by David Caruso) is one of the most adored characters in the CSI universe, he couldn't have solved as many cases on his own.
Brooklyn Nine-Nine demonstrated that humour can work in a crime show, which is uncommon. They introduced Amy Santiago (Melissa Fumero) to the world along with a variety of investigators with various skills.
Without The X-Files, there would undoubtedly not be as many FBI investigation series, and fans of the programme are aware that Dana Scully's portrayal on the show wouldn't have been the same without Gillian Anderson.
It all started on CSI in 2000 with Catherine Willows (Marg Helgenberger) as one of the leads, as those who are familiar with the CSI universe know. Fans adored Willows' mannerisms, talent, knowledge, and compassionate demeanour for 12 seasons.