Oliver McDaniel is a fictional character portrayed by Evan Peters in the TV series The Mentalist.
In the first episode they appeared in, titled 18-5-4 (season 2), they were 23 years old.
They appear in 1 episodes out of a total of 151 aired
Episodes1
18-5-4
episode S2.E21 may 2010A brilliant mathematician is shot and killed by a clown, and the team discovers that he was working on a priceless code-breaking device.