Long before Nathan Fillion was solving crimes with Stana Katic on Castle, he was soaring through space on the short-lived cult fave Firefly. Now, for the first time, Castle is reuniting Nathan with one of his former co-stars on the ABC crime series.
In an episode slated for spring, Adam Baldwin, who played Firefly’s Jayne Cobb to Nathan’s Capt. Malcolm ‘Mal’ Reynolds, will guest star as a detective named Ethan Slaughter. (How’s that for a character name?)
Check out more info at the TV Guide link below!