Supernatural boss on Episode 300: If you're gonna bring Jeffrey Dean Morgan back, you wanna make it count

TV Guide

"I don't know that had we brought him back in Season 4, Season 5, even 6 or 7, that the conversation Sam and Dean would have had with him would have been that much different than the conversation they had with him in Season 2," says showrunner Andrew Dabb. "I think now, in Season 14, we're dealing with two guys that when he died were in their early to mid 20s. Now they're in their late 30s to early 40s and that's a very different mindset you're in as an adult at that age. And so, bringing John back in this way, in this episode at this time, it allowed them to have a different conversation. Conversations that allowed them to put down some of their pre-existing baggage and kind of continue on this emotional journey they've been on for the last decade and a half." ALSO: Episode 300 was one of the greatest Supernatural episodes.