"I could literally cry just thinking about it," said the actor, who plays Danny Reagan on the drama series. It takes a lot for a tough guy like Tom Selleck to cry. And if Tom Selleck is crying, you better believe everyone around him is too.

The beginning of the end of Blue Bloods starts on Friday, October 18, with the first of the last eight episodes of the long-running CBS drama, but the possibility of this world expanding has come up since news of its cancellation.

“Blue Bloods” stars Tom Selleck and Donnie Wahlberg got emotional while they were filming the ending of their long-running procedural. “On the last day, I was filming all my squad room scenes and it’s kinda like where I hold court as Danny Reagan, and Tom Selleck came in just to watch,” Wahlberg said on SiriusXM’s “Andy Cohen Live.”