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Looking to watch The Mentalist Season 2 Episode 21 online? TV Fanatic is your destination for every paid and free streaming option of the The Mentalist S2E21 full episode from 2 affiliates.

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Episode Details

The Mentalist Season 2 Episode 21: "18-5-4"

In "18-5-4" Fisher Stevens guest stars this week on The Mentalist. He plays the owner of a store that might have information for Jane and Lisbon regarding a murder. Read our full recap to see what you missed!