It’s safe to say Castle and Beckett have never encountered a suspect-of-the-week quite like this.
EW has learned exclusively that Joshua Gomez (Morgan from Chuck!) has been recruited to guest star as a suspect in a grisly murder who claims to have traveled back in time to stop terrible events from unfolding — events that will change the course of human history. Yes, to answer the question you’re thinking, there’s a chance this man is simply a deluded killer. Or maybe not…
This is far from the first time Castle has staged a fun, zany episode. Last year, for example, Castle and Beckett worked a case where Bigfoot was briefly — in Castle’s mind — a suspect.
Gomez will appear in the fifth episode of the upcoming sixth season, which kicks off Sept. 23 on ABC.