The Grim Adventures of Billy and Mandy Wiki
The Grim Adventures of Billy and Mandy Wiki
Opposite Day
Series Grim & Evil
Season 1
Production code 102
Writer Maxwell Atoms
Broadcast information
Broadcast number 1A
Cartoon Network US Premiere August 31, 2001
Paired with Look Alive!
Chronological information
Skeletons in the Water Closet
Emotional Skarr

Opposite Day is first segment of the second episode of Grim & Evil.


It's opposite day and Billy didn't tell Grim, so Mandy explains to Grim about opposite day. Soon Grim is tricked by Mandy and Billy into doing things that he doesn't want to do (chores) due to him forgetting to talk in opposite. Later Mandy said that Billy and her deserve pie, which Grim takes as them not wanting it, but than Mandy re-quotes of what she said earlier in the day stating it "was" opposite day, meaning it "wasn't" opposite day. Grim goes cuckoo finding out that he did all those chores and dog kissing for nothing.


  • Written by: Maxwell Atoms
  • Storyboard by: Mike Stern
  • Directed by: Dave Brain


Opposite Day/Transcript


  • This is the first appearance of Saliva.
  • Mandy is smirking when she tells Grim to kiss Saliva, making it one of the few times she smiles in the series.
  • This episode shows that Mandy is actually having a good day even though she's not smiling.
  • The video game the trio is shown to be playing is similar to Mario Kart 64. The controllers used are similar in design to controllers for the Nintendo 64 console (albeit with far more buttons).


Greg Eagles as Grim

Richard Steven Horvitz as Billy

Grey Delisle as Mandy


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The image gallery for Opposite Day may be viewed here.

Skeletons in the Water Closet
Grim & Evil Episodes Next:
Emotional Skarr