Confirmed: 3XK Returning to ‘Castle’

EW reports that we’ll be seeing a familiar evil face this season on Castle: 3XK. Michael Mosley, who previously appeared in the show’s third season as well as the fifth season, will return as the serial killer who has taunted and tricked Castle and Beckett every time they come into contact with him. NOTE: very minor spoilers to follow regarding 3XK’s return:

Image credit: ABC

Image credit: ABC

According to EW, Mosley will appear in this season’s big February two-parter. In addition, his appearance will tie in with another returning guest star:

Unsurprisingly, 3XK returns in the same episodes as Dr. Kelly Nieman (Annie Wersching), a plastic surgeon and an apparent disciple of Tyson’s who cosmetically altered Esposito (Jon Huertas) and Lanie (Tamala Jones) lookalikes that were used to destroy evidence of Tyson’s crimes in the season 6 episode “Disciple.”

Castle airs on Mondays, 10pm ET on ABC. We’ll be looking forward to this two-parter especially!

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