Dean Norris will remain on the right side of the law for an episode of Castle this fall.

The actor, who is unknowingly on the hunt for his brother-in-law as a DEA agent on Breaking Bad, will guest star on the ABC hit as a hostage negotiator, according to TV Line.

No air date has been announced for Norris' appearance, but the installment will find Castle and his mother inside a bank while a robbery takes place, and Beckett looks on helplessly.

Castle premieres season four TONIGHT. Check out clips from the episode in our video section and visit TV Fanatic the moment the episode concludes for a detailed review.