Olivia Benson is a fictional character portrayed by Mariska Hargitay in the TV series Chicago Fire.
In the first episode they appeared in, titled We Called Her Jellybean (season 3), they were 51 years old.
They appear in 1 episodes out of a total of 252 aired so far
Episodes1
We Called Her Jellybean
episode S3.E21 april 2015An apartment fire connected to a case of rape and attempted murder resembles an unsolved case in New York, so Sgt. Benson of Special Victims Unit comes to Chicago to help Intelligence with the investigation.