Brett Cullen (Dan Fixx, Falcon Crest's season 6) will be a guest star in the upcoming episode of "Castle" in which Susan Sullivan stars as Martha Rodgers.
Cullen will play the part of Christian Dahl.
Last season, Billy R. Moses was a guest star on "Castle". Funny, that Brett Cullen was kind of replacement for Moses on "Falcon Crest" when he left the show in season 6 and they both worked with Susan on FC.
Maybe, we will be able to see "Richard" or "Chase" or even "Melissa" on that show? We'll see...
Castle episode "Poof! You're dead" (3.12) will air on January 10 on ABC.