Fumble

Fumble is the minor antagonist from the Spy Mice book trilogy. He is an agent in the Spy Mice Agency, but in fact he works for Roquefort Dupont and his rat gang.

The Black Paw
As revealed in the story, Fumble attempts to become a field agent when he starts working for the Agency. However, his boss Julius denies him due his overweight. As soon as Glory Goldenleaf, a simple computer gymnast, becomes a field agent almost immediately, Fumble starts hating her. The desperation and humiliation from being declined obviously lead Fumble to become a double agent and starts working for the rats who are the biggest enemies of all mice.

Envious Fumble decides to give Glory a hard time as often as possible. He often taunts her and reminds Glory her failures, only to make her feel guiltily during missions. As a response for his bullying, Glory often calls him a stupid house mouse, although she is a half-house mouse as well. When Glory loses her job, Fumble is the only worker in the entire Agency whom makes this happy. He also reveals Julius Glory was talking to humans and thus broker mouse code, which almost ends with Glory's arrest. Luckily, Fumble's plan to get rid of Glory fails and what is furthermore, Julius orders him to help the cleaners during the Halloween party, as he suspects his employee's plan.