Trivia: There is a three-eyed smiley face on Miss Simian's door, which is a reference to the 2001 film, "Evolution"
Trivia: The voice of Gumball in Japan is voiced by Junko Takeuchi, who is also the voice of Naruto Uzumaki.
Trivia: When Nicole and Richard are lying down together, they have a flashback. Richard's T-shirt in the flashback is a reference to Nirvana and the Nirvana logo.
The Microwave/The Meddler - S1-E17
Continuity mistake: In "The Meddler", Nicole is feeding Gumball food with a spoon and drops it on the table. The camera cuts to Darwin and then back, but the spoon is now gone.
Nicole Watterson: Well maybe it all comes back to the stupid name you gave me!
Gumball Watterson: Um, what's wrong with Nicole?
Nicole Watterson: Nicole is my middle name, my first name is DOCTOR!