Jenny the Monkey, or simply Jenny, is Dr. Axel Donovan's talking pet monkey. She is a recurring character in the animated series Big Guy and Rusty the Boy Robot based on the 1995 comic book The Big Guy and Rusty the Boy Robot by Dark Horse Comics. She usually sits on Dr. Donovan's shoulder while making fun of Quark's scientists and employees. She has a keen sense of self-preservation.
- She was voiced by Kathy Kinney.