Castle: Scoop on the possibility of Castle's father returning in season 7 from TVLine's Matt Webb Mitovich

Here's some scoop on Castle from this week's (Posted on 5/14/14) Matt's Inside Line column.

It wasn’t right how Castle Season 6 ended, but I do believe it has something to do with Castle’s dad. Is he going to make an appearance in Season 7? –Nola
When I asked show boss Andrew W. Marlowe if he had in mind a third beat for the Jackson Hunt/Spy Daddy storyline, he said, “There’s always stuff floating in the back of our minds, but it all depends on [James] Brolin’s availability and finding a story that makes sense and honors the characters.” So I myself am speculating no, Castle’s dad was not involved in that finale twist.

Link to the full article:‘Agents of SHIELD’ Season 2 Director Coulson Spoilers — ‘Once Upon a Time’ - TVLine