In DreamWorks Animation's hit heist comedy The Bad Guys, the character often mistaken for a hamster is actually a remarkably polite guinea pig. Professor Rupert Marmalade IV serves as the central antagonist and the catalyst for the crew's attempted reinvention. British actor, comedian, and writer Richard Ayoade provides the voice work for this calculating character, bringing his signature dry wit and distinct cadence to the role.
While casual viewers often refer to Professor Marmalade as a hamster due to his tiny stature and fluffy appearance, official studio profiles confirm he is a guinea pig. Understanding how Ayoade brings this philanthropic-turned-villainous character to life involves looking at the wider vocal cast, the character's narrative arc, and the production choices behind DreamWorks Animation.
Who Is Professor Marmalade?
Professor Rupert Marmalade IV is introduced as a wealthy philanthropist and scientist who is universally adored. He is even awarded the prestigious Golden Dolphin for his charitable work. When Mr. Wolf and his criminal crew need to pull off a fake reformation scheme to avoid prison time, Marmalade steps in as their moral mentor, teaching them how to perform good deeds.
However, the narrative subverts expectations. Marmalade isn't just an annoyingly good creature; he is secretly a greedy criminal mastermind manipulating the crew to cover up his own massive meteor heist. Ayoade's vocal delivery relies entirely on upper-class British politeness, making the character's eventual villainous reveal both funny and sharp.
The Voice Behind the Character: Richard Ayoade
Richard Ayoade is best known for playing Maurice Moss in the British sitcom The IT Crowd and for his eccentric comedy style. His casting as Professor Marmalade was a deliberate choice by director Pierre Perifel to give the miniature mammal a sophisticated, overly articulate persona that contrasts sharply with the gritty, street-smart energy of Mr. Wolf (voiced by Sam Rockwell) and Mr. Snake (voiced by Marc Maron).
Ayoade's performance relies on vocal inflection rather than high-energy shouting. By speaking in a calm, measured, and hyper-correct tone, he sells the facade of a gentle philanthropist while hinting at underlying arrogance.
The Full Main Voice Cast of The Bad Guys
To understand how Professor Marmalade fits into the film's ensemble, it helps to look at the main voice actors who make up the universe of the movie, adapted from Aaron Blabey's graphic novel series:
- Sam Rockwell as Mr. Wolf, the charismatic leader of the criminal gang and a smooth-talking pickpocket.
- Marc Maron as Mr. Snake, Wolf's cynical, safe-cracking best friend who resists the pivot to righteousness.
- Awkwafina as Ms. Tarantula (Webs), an elite hacker with a sharp tongue and a knack for electronics.
- Craig Robinson as Mr. Shark, a master of disguise who leans into emotional sensitivity.
- Anthony Ramos as Mr. Piranha, the short-fused muscle of the operation.
- Zazie Beetz as Diane Foxington (The Crimson Paw), the state governor with a secret past of her own.
Why Do People Think Professor Marmalade Is a Hamster?
The confusion surrounding Professor Marmalade's species comes down to visual aesthetics in animated family films. Guinea pigs and hamsters share similar compact body types, rounded ears, and soft fur. In promotional materials and quick glances, viewers frequently misidentify him.
Furthermore, the character's petite size compared to the anthropomorphic predator crew (wolves, sharks, and snakes) emphasizes his perceived vulnerability. This physical comedy—making the smallest character the most dangerous mastermind—is a core pillar of the film's humor.
Frequently Asked Questions
Is Professor Marmalade a hamster or a guinea pig?
He is officially a guinea pig. While many viewers mistake him for a hamster due to his small size and appearance, DreamWorks explicitly categorizes him as a guinea pig philanthropist.
Does Richard Ayoade do any singing in the movie?
No, Ayoade's work on The Bad Guys is strictly voice acting and comedic dialogue delivery, keeping the character's sophisticated demeanor intact throughout the heist sequences.
Where can I watch The Bad Guys?
The film is available to stream on platforms like Peacock and Netflix depending on your region, and can also be rented digitally across major video-on-demand services.
