She is voiced by Kayla Lorette

Monkevil appears in the episode Monkey Hearts. After being set free from jail, Monkevil was requested to become a Rocket Monkey both by Gus & Walley. Dr.Chimsky warns the monkeys that she was a criminal, and the fact that she was set free doen't mean that she can't betray them.Due to Inky being jealous that both of the monkeys paid more antention to her than him, he made a bunch of clues leading to Yay Ok's supection that Monkevil is still a criminal. After being kicked out of the ship, she became a criminal once again.

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