Do You Remember This Year's Biggest Moments On Criminal Minds?

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We welcomed many new faces.

In Season 11, we welcomed Dr. Tara Lewis, who quickly became an essential member of the team by helping take down The Dirty Dozen. This Season, the BAU gained even more new members, including Agent Luke Alvez and Special Agent Stephen Walker. While we've gotten to know Agent Alvez, we can't wait to find out more about Agent Walker in the new year!

Watch Criminal Minds on Wednesdays at 9/8c on CBS and CBS All Access.