- Acting for Two: Amy Poehler provides the voices for Duncan and Annie. Also overlaps with Talking to Himself.
- Actor-Shared Background: Jing and her voice actress, Joy Osmanski, are both adopted.
- All-Star Cast: The cast list includes Amy Poehler, Ty Burrell, Rashida Jones, and Wiz Khalifa.
- Crossdressing Voices: Amy Poehler provides the voice for Duncan.
- Dawson Casting: Duncan and his friends and siblings are all voiced by actors in their thirties and forties.
- Descended Creator: Series co-creator Amy Poehler provides the voices for Duncan and Annie.
- Name's the Same: Duncan's parents, Jack and Annie, share the same names as the protagonists of The Magic Tree House.
- Out of Order: In terms of production, Undercova Mutha was the second episode.
- Role Reprise: Paul Fusco reprises his role as ALF in "Sister, Wife".
- Those Two Actors: Amy Poehler and Rashida Jones previously starred in Parks and Recreation.
- What Could Have Been:
- In earlier promotional videos, Jing was shown with much more lighter skin compared to the rest of the family, the animators probably realized the Unfortunate Character Design and gave her the same skin tone as the Harrises.
- the episode Undercuva Mutha was originally going to be titled My Mom the Dick. note
- Some jokes from promotional videos never appeared in the show, these includes:
- Duncan pronuncing spaghetti wrong
- Annie about to give chase and then exclaiming that she's "about to Days of Thunder it", Duncan then asks her when was the last time she saw a movie. This scene was cut from the episode "Undercuva Mutha".
- Jing missing Duncan if he goes to college which is followed by Kimberly and Duncan laughing implying that the latter will never make it to college.
- Write What You Know: As creator and producer of the show, Amy Poehler stated in a interview that the characters and premise are based on her experiences as a mother with two sons.
- Write Who You Know: Amy Poehler also mentions that Annie is largely inspired by her own mother.
Trivia / Duncanville