- Yeni Álvarez - Aide #2
- Jon Barton - SWAT Leader
- Jeremy Brandt - Aide #1
- Elisabeth Harnois - Patricia and Cheryl Davenport
- David J. Lee - FBI Agent
- Sonya Leslie - Agent Rush
- Matt Letscher - Vincent Shyer
- Meredith Monroe - Haley Hotchner
- Matt Newton - Jordan
- Robin Thomas - Evan Davenport
- "I Like That/Stop" by Jae Millz
- "Hyperventilation" by The Brian Jonestown Massacre
- Jason Gideon: Euripedes said, "When a good man is hurt, all who would be called good must suffer with him."
- Jason Gideon: Euripedes said, "When love is in excess, it brings a man no honor nor worthiness."
- Despite being credited in the opening sequence, A.J. Cook and Kirsten Vangsness, the actresses who portray JJ and Garcia, respectively, do not appear in the episode.
- The title stems from the term "mirror twins", used to describe Patricia and Cheryl Davenport in the episode. The full term "mirror image twins" describes twins who exhibit characteristics with reversed asymmetry, such as dominant handedness or organs, just as the Davenport twins were described.