|Introduced In||"Bad Little Boy"|
|Latest Appearance||"Season 5"|
Lady Grim is the fictional gender-swapped version of Lord Grim. She is evil girl a mysterious, super-powerful, red-skinned, androgynous devil, and assassin. And her sidekick Bow-Wow. Lady Grim is a creation of Marceline that mentione to Lord Grim in the episode "Bad Little Boy".
- This Looks Like Marceline. Don't you think?