Streaming, rent, or buy The Mentalist – Season 1:
Currently you are able to watch "The Mentalist - Season 1" streaming on Amazon Prime Video, Viaplay, Strim. It is also possible to buy "The Mentalist - Season 1" on Blockbuster, SF Anytime as download or rent it on SF Anytime online.
There aren't any free streaming options for The Mentalist right now. If you want know when it is streaming for free, click 'Free' in the filters above and hit the notification bell.