- Aside Glance: Occasionally Diana does this towards the audience at things she finds silly.
- Award Snub: The lack of a Tony nomination for Aaron Tveit. And the loss of Best Musical for many.
- Awesome Music: A lot of it, including "You Don't Know"/"I Am the One," "I'm Alive," "Make Up Your Mind"/"Catch Me I'm Falling", and "Light".
- Broken Base: When Aaron Tveit, the original Gabe, was replaced by Kyle Dean Massey, the fanbase became divided between who was a fan of the show and who was a fan of the cast. And don't even get them started on Alice Ripley vs. Jessica Phillips vs. Marin Mazzie.
- Fridge Horror: Natalie is 16 and Gabe says he's "almost 18". Gabe died when he was eighteen months old. So, with basic math and the knowledge that pregnancy lasts nine months, you realize that Diana was already pregnant with Natalie when Gabe died. She went through with this pregnancy despite the fact that her son died 3 months ago maximum.
- In the actual performance, Gabe was only eight months old. It's actually fairly common for there to be minor differences made in the script and score between recording the soundtrack and the start of the run.
- "I couldn't hold her in the hospital... I couldn't let myself hold her."
- But in "Make Up Your Mind," she says "We had Natalie to... and I know she knows..." That sounds like they tried to conceive a new child as a Replacement Goldfish, not that they opted to continue a pregnancy through a very painful time.
- In the actual performance, Gabe was only eight months old. It's actually fairly common for there to be minor differences made in the script and score between recording the soundtrack and the start of the run.
- It Was His Sled: Dan and Diana's son is named Gabriel. This isn't revealed until the near-end of the show, but it's common knowledge, mainly because it'd be difficult to talk about him otherwise. A lot of new fans are surprised to find out Gabe's name ever was a secret.
- Memetic Mutation: "I'm Alive" seems to be getting used a lot in YouTube Poop.
- "Mozart wrote poems about farts"
- "Thank you doctor. Valium is my favorite color. How'd you know?"
- Fans love to point out that the original choreography in "I'm Alive" is very similar to pole dancing.
- Signature Song: "I Am the One"
- The Woobie: Every member of the family for their own reasons.
- Natalie because she is neglected by her mother and always coming in second best to a brother that isn’t even alive.
- Dan is trying to keep together a dysfunctional family while trying to keep a façade up of everything being fine.
"Now I'm strolling right beside her as the blackhole opens wide, mine is just a slower suicide.- Diana is the biggest and most prominent in the show. She has to deal with a mental illness, what is either a sadistic and domineering projection of her subconscious, or an angry spirit fearing being forgotten, who looks like the son she lost, and to top it all off, her family is starting to crack because of her.
- Gabe. If you really believe his presence is there. He doesn’t want to be forgotten by a family he barely knew. Also, a medical tragedy robbed him of life when he was infant.
