This is the last episode of the series where John Cullum appears as Big Mike, and Blaine Saunders appears as Carly.
Around 4 minutes in, when Axl is startled by Brick he is playing "king of the road" on his guitar.
John Cullum, who plays Grandpa Big Mike, introduced the titular song from "On a Clear Day You Can See Forever." He received a Tony nomination for his performance.