Last Friday, we participated in a conference call with Zachary Levi and Josh Gomez.

The portrayers of Chuck and Morgan, respectively, were cordial, helpful and downright hilarious. They also spilled a few storyline spoilers on their characters' relationship, the return of Scott Bakula and more.

Enjoy these excerpts from the conversation...

Levi, on Morgan's jealousy over Hannah: I'm unaware of his cluing into my life a little bit more. I'm unaware of his suspicions... You'll see how it progresses and affects both Morgan and my character in my ability to sneak out [on missions] like I always do.

Levi, on Bakula's guest-starring stint: I know this is a spoiler and we're not supposed to talk about it, but it turns out he's my dad. He really is doing fantastic work - I can't even tell you how much I love him... He's always on his moments, he dives into this character of Steven Bartowski, who's very odd and quirky and brilliant. He brings it every time.

He is doing three episodes.

Gomez, on Christoper Lloyd's stint: As you know, there have been some really cool people on our show. But for us personally, that's going at some geek fanboydom. So it was like, "He's on the set right now!" We don't always get like that, but to have Doc Brown on the show was like, are you kidding me?

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.