|Age||Same as Grim|
|Occupation||Put earthlings into jealousy|
|Real world information|
|Appears in||The Grim Adventures of Billy & Mandy|
|First appearance||"The Love that Dare Not Speak Its Name"|
|Voice actor||Richard Steven Horvitz|
Blandy is an evil creature whose sole purpose is to specifically pit Earthlings into jealousy. She is known to be a shapeshifter, due to how she changed back to her original form. In her human form, she has the same distinct features as Billy (an example is the large nose) and small stature when in disguise. Billy fell in love with her, but she fell in love with Grim, thus making Billy enraged. Billy thrashes Grim for a while, even though Grim didn't like Blandy at all. Mandy appears while hearing of Blandy in one of Grim's books (during which Harold was reading, or specifically looking at the pictures). She is sent to go back to the Underworld. However, at the end of the episode she appears again, and she again thought she was marrying Grim instead of Billy, which repeats the beating of Grim.