Emma Steed: Brisco, don't worry. I'm like a cat--with nine lives.
Lord Bowler: And what number you're on?
Emma Steed: 23?
(after Pete is hired to drop a boulder)
Pete: That's why they came to Pete Hutter. Because they know if you're gonna pull off this type of operations, what you need is big rocks!
Dr. Milo: It's alright... when I... When I find myself in times of trouble, I say, boy you gotta carry that weight. I am he - you are he - you are me - we are all together, speaking words of wisdom come together right now. Amen...
Chapter titles: Babe Scoping, and A Kiss Before Dying
Emma Steed, an English spy, is a deliberate nod to The Avengers, specifically Emma Peel and John Steed.
Timothy Leary's character makes several drug references, including the use of his trademark line "Tune in, turn on, drop out."
Chapter title: A Kiss Before Dying
Alluding to the movie of the same name.
Dr. Milo: Let It Be...
The eulogy Dr. Milo gives for the dead trapper is a random stringing-together of Beatles lyrics. There is organ background music framing the scene that is a note-for-note take on their song, "Let It Be".
Emma Steed: Do me a favor. No more talk about roping, riding, brandin'
Refers to the Rawhide theme song.