Thanks to The Spoiler Fairy for sending us the following..
Quite a few guest star and co-star roles are being cast for episode 2.06. According to the descriptions of several roles, the episode will contain roles as seen in 3 eras: 1954, the 1960s and 2012. The roles include a female high school cheerleader and a male medical student as seen in 1954, a psychotic 7-year-old girl, the girl's worried mother, a hospital administrator, a crime reporter, a middle-aged vacationing couple, and 2 police officers in 1964, and finally 2 detectives and a few more police officers in 2012.
Source: SpoilerTV
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