Roddy St. James is the character people usually mean when they ask are they rats in flushed away. The short answer is yes, with one important distinction: Roddy is a pet rat, while Rita Malone and the sewer-dwelling characters are working rats from the underworld of Ratropolis.
That split is the whole joke and the whole world of the film. The movie keeps playing with class, identity, and who belongs where.
If you want the clean answer, Flushed Away treats Roddy as a rat, Rita as a rat, and the sewer crowd as rats too, not mice.

The Short Answer

Roddy, Rita, Sid, and the rest of the main animal cast are rats, even when the movie’s style and dialogue make them easy to mislabel as mice. The clearest distinction is social, not species-based.
Roddy is a pampered pet rat in Kensington. Rita and the sewer residents are street-smart sewer rats from Ratropolis.
Why Roddy Is Best Read As A Pet Rat
Roddy St. James lives like a spoiled house pet, and that is the point. His clean apartment life, his cage, and his sheltered behavior make him read as a pet rat rather than a wild sewer rat.
The film contrasts him with Sid and the others in the drains.
Why Rita And The Sewer Characters Are Rats
Rita Malone works the sewer world, and the film repeatedly frames her as part of that rat community. Characters like Sid and the broader setup around Roddy and Rita point to rats living in different social worlds, not different species.
What The Film Itself Makes Most Clear
The film’s plot and character descriptions describe Roddy as a pet rat and Rita as a scavenger rat. Ratropolis is a sewer city full of rats.
Why People Get Confused

The movie’s language, its joke-heavy script, and the way characters casually swap “rats” and “mice” in conversation cause confusion. Villain names like the Toad, Spike, Whitey, and Le Frog add to the mix, making it easy to lose track of who is what as the story moves quickly.
The Mouse Language In Taglines And Summaries
Some summaries and fan discussions loosely call Roddy a mouse, even though the character is presented as a rat. That shorthand sticks because the movie leans into a fairytale tone.
The contrast between the Kensington flat and the sewer world makes the species label feel secondary at first glance.
How Proverbs And Casual Dialogue Blur The Terms
The script uses insults, nicknames, and quick banter, so “rat” can sound like a social label as much as a biological one. When Sid, the Toad, Spike, Whitey, and Le Frog speak about the rodents around them, the dialogue often emphasizes contempt, class, or status more than taxonomy.
Why Fan Discussions Still Debate It
Fans still debate it because animation design and character behavior can suggest mouse-like traits, even when the story says rat. The debate is really about appearance versus canon.
Flushed Away presents the central characters as rats.
How The Characters And Setting Support The Answer

The setting makes the species answer easy to read. Kensington gives Roddy his sheltered upstairs life, and Ratropolis gives Rita her sewer-world identity.
The villains constantly talk about rodents in a way that reinforces that these are rats, not mice.
Roddy’s Fish-Out-Of-Water Role In Kensington
Roddy’s life in Kensington is built around privilege, comfort, and isolation. That fish-out-of-water setup works because he is a rat living like a pet.
He then gets forced into Ratropolis, where his polished habits clash with the sewer reality.
Rita’s World In Ratropolis
Rita belongs to Ratropolis, and her boat, the Jammy Dodger, fits the scavenger life she leads. Her world, along with Jammy Dodger II, makes the sewer setting feel like a rat society with its own rules, trade, and family structure.
How The Villains Refer To The Rodents
The Toad, Spike, Whitey, the slugs, and Le Frog all treat the sewer residents as rodents to be controlled or eliminated. That language supports the film’s central idea that these characters are rats living in a hidden city, not mice in disguise.
What The Film’s Background Adds To The Debate

The production history helps explain why the characters look the way they do. Flushed Away came from Aardman’s world, was made with DreamWorks support, and features a voice cast that gives the rats a very specific social identity.
Voice Cast And Character Framing
The voice cast, including Hugh Jackman, Kate Winslet, Bill Nighy, Andy Serkis, Jean Reno, Ian McKellen, and Shane Richie, gives the film a polished, theatrical feel. That performance style helps Roddy and Rita read as expressive rats with human social habits, not generic small animals.
Aardman And DreamWorks Era Context
As Flushed Away was developed during the Aardman and DreamWorks era, it followed Chicken Run and Wallace & Gromit with a CGI approach that still echoed clay animation. The result is a stylized rat world where character and class matter more than realistic animal anatomy.
The Matty Healy Claim About Roddy
Some people claim that Matty Healy of The 1975 inspired the character Roddy. Denise Welch’s comments and later interviews about the character’s look support this idea.
The design inspiration relates only to Roddy’s appearance. The film still presents Roddy as a rat.