- Hilarious in Hindsight: Martin Sheen as foaming-mad mid-westerner President Stillson during the "the missiles are flying! Hallelujah! Hallelujah!" scene is especially funny due to his later role as the ideal Coastal Liberal president, President Bartlett, in The West Wing.
- Christopher Walken as an English teacher who tells his class to read "The Legend of Sleepy Hollow" later plays the Headless Horseman in Sleepy Hollow.
- Memetic Mutation: "THE ICE! IS GONNA BREAK!"
- Nightmare Fuel: Frank Dodd's final act is to lower himself onto his own open scissors - stabbing himself to death through the roof of his mouth. Johnny's vision of Stillson's eager reaction to giving the final launch order also qualifies.
- Hilarious in Hindsight: In a Season 2 episode, Johnny is hit by a car while saving a child. He wakes up in the hospital and asks Bruce if it's 2009 (i.e., if he's been in a coma for ANOTHER six years.) Bruce deadpans "no... it's 2011." Johnny then asks if the Red Sox have won the World Series yet. We now know that in fact they have won it twice in the period Johnny's second coma would have covered, adding an added punch to this joke.
- Ear Worm: The credits song followed by "No! Yes! No! Yes! NOOO! Yes! You're grounded.". You'd be surprised how much that can get stuck in a person's head.
- Tear Jerker: When Rev. Purdy tearfully lays out for Johnny why Johnny's mother killed herself.
- Sarah's breakdown at the end of "Descent"—powered both by Walt being near death and the fact that her chances of coming clean with him and making amends have just plummeted.
- "Forever Hold Your Peace" has two: Sarah's reaction to Johnny demanding to know if, had she known he'd wake up, she'd have waited for him...and Johnny's vision of her shedding tears over his unconscious form, telling him Walt's asked her to marry him.
- The Woobie: Both Johnny and Sarah easily qualify. Johnny suffers a LOT of angst from his visions (especially in the intensely tragic "Playing God")...and from the fact that a random accident kept him from all his dreams of a life Happily Married to Sarah.
- Sarah constantly suffers from the conflicting emotions of her love for Johnny and her devotion to Walt. And she's put through the emotional ringer in Season 6.