- “This Morty is the twin sister of Morty wearing a baseball cap. She can often be seen standing in the background making references to other shows.”
- —In-game Description
Mortabel, also known as Girl Morty, is a portmanteau character of Morty Smith and Mabel Pines from Gravity Falls. She first appeared in "The Rickshank Rickdemption", and later in Pocket Mortys and Gravity Falls: Lost Legends. She also appears in a flashback in "Rickmurai Jack", although she could be a different version due to Rick C-137 appearing younger than her Rick.