Interview -- More from the Chuck Phone Q&A

NBC confirmed a while back that Scott Bakula would be around for one of the later episodes of the season. Is there anything you can say about what he's doing or additionally anyone else that we are familiar with that might be making a return appearance before the season's out?

Joshua Gomez: He's doing awesome work I can tell you that much. Get Scotty Bak.

Zachary Levi: I know this is a spoiler and we're not supposed to talk about it but it turns out Scott Bakula is my dad. Yeah, I don't know. He really is doing fantastic work. I can't even tell you how much I love Scotty Bak. That guy is not only super talented but he is so fun. Like he's like a little kid like... You know, we'll just break into song or do funny voices and but he's such a pro like just like to a T. You know, just always on his moments, always diving into this character, Steven Bartowski who is very odd and kitschy and quirky and brilliant and, you know, and he brings it every time, every scene and it's such a pleasure to work opposite him. And, you know, and Josh gets to work with him as well so it's nice when you have a guest star that, you know, kind of traverses both the spy and personal life.

Source
thanks to Mera