Mirren took on the role of DCI Jane Tennison in the ITV crime drama 'Prime Suspect'. The series was immediately successful and critically acclaimed, launching Mirren to international fame. Tennison's portrayal as a flawed but brilliant female detective challenged gender stereotypes in police procedurals.

Mirren continued to play DCI Jane Tennison in several subsequent 'Prime Suspect' series, each tackling complex and challenging cases. She won numerous awards for her performance, including multiple BAFTA Awards and an Emmy Award.

Following the success of 'Prime Suspect', Mirren continued to work in television, taking on roles in miniseries and TV movies. This solidified her reputation as a versatile and respected television actress.