Castle return to ABC with the second half of season eight on February 8, and fans will already see one mini-Firefly reunion on the series in an upcoming episode, but Nathan Fillion teased that fans will see a second Firefly star on the series before the end of the season.
Spoiler TV shared a video interview featuring Fillion and his Firefly co-star, Alan Tudyk, and the Castle star revealed that Tudyk would soon appear on the series. He also teased that Summer Glau has already filmed her appearance on the series.
TV Series Finale previously reported that Glau would appear on Episode 14 of the series this season.
Were you a Firefly fan? Are you happy to see another Firefly star joining Nathan Fillion on Castle? Tell us what you think.
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