Invader Zim coloring pages: 42+ free printable PDF designs featuring the full cast of Invader Zim, including Zim, GIR, Dib, Gaz, Tak, and Ms. Bitters, alongside episode characters including the Ham Demon, Chickenfoot, Easter Platypus, and Lawn Gnome, plus logo pages. Every page is free to download as a PDF or color in the browser, with no account required.

Invader Zim is a Nickelodeon series created by Jhonen Vasquez, premiering on March 30, 2001. It follows Zim, an Irken alien attempting to conquer Earth, opposed only by Dib, the one human who recognizes him as an alien.

These pages suit longtime fans of the series and older children aged 8 and up, looking for a full cast set that covers both the main characters and the show’s memorable one-off episode characters.

The coloring challenge: five main characters with unrelated palettes across 42 pages, plus episode characters that add further variation. Zim’s vivid green, Gaz’s near-black, Tak’s blue-purple, Dib’s muted human tones, and Ms. Bitters’ shadow-grey each require a completely different approach.

Quick Answer

Invader Zim coloring pages are a free set of 42+ printable PDFs and browser-based coloring sheets covering the full series cast and a wide selection of episode-specific characters and scenes.

Best for: Invader Zim fans aged 8 and up, Nickelodeon animation enthusiasts, and anyone looking for a large, varied cast set from one of animated television’s most distinctive series

Formats: printable PDF and online coloring

Popular pages: Zim and GIR, Gaz from Invader Zim, Tak from Invader Zim, Dib Membrane, and the Invader Zim logo

Creative uses: a main cast display, a Zim and GIR pair, a villain and rival set, and an episode characters wall

What’s Inside Invader Zim Coloring Pages

The set covers the full named cast alongside episode characters that reflect the show’s range from character drama to pure absurdism.

Zim Pages

Six pages feature Zim as the main subject: Zim Thinking, Zim Shouting, Zim from Invader Zim, Marching Zim, Evil Zim, Cute Zim, Angry Zim, Bear Suit Zim, Irken Invader Zim, and Zim and Globe.

Coloring Zim: Zim’s Irken form has vivid green skin, large red eyes with no pupils (just solid deep red irises), two tall curved antennae, and a black-and-purple Irken uniform with his PAK unit on the back. His PAK is a mechanical backpack-like structure in darker metal tones. The combination of bright green skin and red eyes over a dark uniform makes his palette one of the most high-contrast in the set.

On pages where Zim is in his human disguise at school, he wears a black wig covering his antennae and large dark contact lenses to hide his red eyes. These pages require a slightly more restrained version of the same palette: the green skin and black hair/lens combination with the uniform reads as an improbable but recognizable disguise.

Bear Suit Zim: one page shows Zim in a bear costume, a deliberate absurdist visual that maintains his green face while surrounding it with bear costume elements. The costume can be any bear color, though warm brown works best as maximum contrast to the green.

GIR and Zim Pages

Two pages show GIR and Zim together: Gir and Zim and Zim and Gir.

Coloring GIR and Zim pages: GIR’s lime green dog suit against Zim’s slightly cooler, more saturated Irken green creates a subtle but important distinction between the two greens. GIR’s suit green is warmer and lighter; Zim’s skin green is slightly deeper and cooler. On pages where both appear, keeping these two greens visibly distinct is the main coloring challenge.

Dib Pages

Three pages feature Dib: Dib Membrane from Invader Zim, Dib from Invader Zim, Glaring Dib Invader Zim, Baby Dib from Invader Zim, and Bologna Dib and Zim.

Coloring Dib: Dib is a human boy with an unusually large head, dark spiky hair, and a long dark trenchcoat. His palette is significantly more muted than Zim’s: dark near-black coat, dark hair, pale skin, and standard human features. He wears round glasses. On pages where Dib and Zim appear together, the contrast between Dib’s dark, muted palette and Zim’s vivid green makes the two characters immediately readable as different species.

Gaz Pages

Two pages feature Gaz: Gaz from Invader Zim and Annoyed Gaz from Invader Zim.

Coloring Gaz: Gaz is Dib’s younger sister, with a very dark aesthetic. Her hair is dark purple-black, often covering half her face. She wears a striped shirt in dark and slightly warmer tones and dark clothing overall. Her skin is pale, like Dib’s, but her overall palette is even darker and more gothic than his. On the Gaz pages, the darkest values in the set are appropriate.

Tak Pages

Two pages feature Tak: Tak from Invader Zim and Human Tak Invader Zim, plus Zim and Tak.

Coloring Tak: Tak is a female Irken invader and one of Zim’s rivals. Her Irken form shares Zim’s green skin but with a different uniform: Tak’s PAK and clothing have a slightly more elegant, blue-toned design compared to Zim’s warmer purple-black. Her eyes are the same solid red. The Human Tak page shows her in disguise, with dark hair and contacts, similar to Zim’s human disguise approach, but with different clothing proportions.

Ms. Bitters

One page features Ms. Bitters from Invader Zim.

Coloring Ms. Bitters: Ms. Bitters is the classroom teacher, depicted as impossibly tall and thin, dark grey-black, hunched, and apparently not entirely human. Her coloring is almost entirely desaturated: deep charcoal grey-black clothing, pale grey face, dark hollow eyes. She is the darkest-palette human character in the set. Any warmth in her palette should be minimal and cold rather than inviting.

Supporting Cast

Several pages cover additional named characters: Minimoose from Invader Zim (tiny purple moose companion to GIR), Mimi from Invader Zim (Tak’s SIR unit, more functional than GIR, colored in darker metallic tones), and Zita from Invader Zim (human classmate).

Episode Character Pages

Twelve pages show characters from specific episodes: Ham Demon, Chickenfoot, Easter Platypus, Lawn Gnome, Bloaty, Burgerlord, Shnooky, Peepi, Poop Dawg, Candy or Doom, Classroom Invader Zim, and Bumble Bee from Invader Zim.

Coloring episode characters: each episode character has its own palette entirely unrelated to the main cast. Ham Demon: deep reddish-brown meat tones. Chickenfoot: human tones with chicken-foot yellow. Easter Platypus: warm pastels appropriate to an Easter creature. Lawn Gnome: traditional lawn gnome colors of red hat, white beard, and blue or green clothing. Bloaty: Bloaty’s Pizza Hog is a pig-based fast food mascot in warm pink and red. Burgerlord: fast food villain palette of warm yellow and brown.

Logo Pages

Two pages show the Invader Zim logo in different formats: the main title logo and an alternate version.

Coloring logo pages: the Invader Zim logo uses a jagged, angular font consistent with the show’s visual aesthetic. The standard palette for the title uses green lettering on dark purple-black, mirroring the show’s core Irken color scheme. Keeping the lettering the same green as Zim’s skin and the background the same dark purple as his PAK and uniform creates a display-ready logo that reads consistently with any character pages displayed alongside it.

Printable PDF and Online Invader Zim Coloring Pages

The main cast pages and logo pages reward printing for close palette work, particularly for getting the two distinct greens (GIR’s lime vs Zim’s cooler green) right side by side.

What These Pages Do

Nickelodeon canceled Invader Zim in 2002 after 27 episodes because the ratings with young children were too low. The show was considered too dark and too strange for its target audience. The cult following it developed after cancellation was large enough that fans campaigned for its return for years, eventually producing the 2019 film Invader Zim: Enter the Florpus.

The show is about an alien invader no one takes seriously enough to stop, a boy who knows the alien is real but whom everyone dismisses, a sister who is smarter than everyone and largely does not care, and a robot built from garbage. The world contains a teacher who may not be human and episodes about lunch meat, lawn gnomes, and a platypus who appears at Easter.

Coloring through 42 pages of that world is working through a show that found its audience after it was already gone. The episode character pages hold the absurdist range of the series as directly as the main cast pages do. Ham Demon and Chickenfoot are not background textures. They are part of what the show is.

The AAP notes that dark or absurdist animated content, when explored through coloring activities, gives children a structured way to engage with unusual creative premises and examine how visual design conveys tone, which supports both visual literacy and tolerance for creative ambiguity.

Art therapy practitioners note that dark aesthetic coloring subjects, particularly those from media associated with specific cultural moments in childhood or adolescence, are frequently cited as emotionally resonant and stabilizing for older children and young adults who use coloring as a stress-management activity.

How to Color Invader Zim Coloring Pages

Keep the two greens distinct: Zim’s skin is cooler and deeper than GIR’s suit. On pages where both appear, GIR’s lime-warm green and Zim’s slightly cooler, more saturated green must read as two different colors. If both are colored the same lime green, the characters lose their visual distinction.

Gaz is the darkest human in the set: stay in deep values. Gaz’s palette should use the set’s darkest ranges: dark purple-black hair, very dark clothing, pale skin. Any attempt to lighten her palette loses the character’s visual identity.

Ms. Bitters is desaturated grey-black, not warm black. Her coloring should be cool and flat, with no warmth. A warm black reads as a costume; a cool grey-black reads as the character’s actual nature as the show presents her.

Episode characters have standalone palettes. The Ham Demon, Easter Platypus, and Lawn Gnome pages have nothing to do with the main cast palette. Approach each as its own independent subject rather than trying to relate it to the green-and-dark scheme of the main characters.

5 Creative Craft Ideas with Invader Zim Coloring Pages

Main Cast Display

Color Zim, Dib, Gaz, Tak, and Ms. Bitters as a five-character main cast display. Line them up by palette range: from Zim’s vivid green through Tak’s blue-purple to Gaz’s near-black.

Five characters, five completely different palettes, organized by saturation from vivid to desaturated. Takes about thirty-five minutes.

Zim and GIR Pair

Color the Zim and GIR page, keeping both greens present but distinct: GIR’s warmer lime against Zim’s cooler, deeper green.

The show’s central duo and its central coloring challenge are on one page. Takes about fifteen minutes.

Episode Characters Wall

Color the Ham Demon, Chickenfoot, Easter Platypus, and Lawn Gnome pages as a four-character episode wall.

Four pages from four different episodes, with four completely unrelated palettes. Takes about twenty-five minutes.

Rivals Display

Color the Zim from Invader Zim and Tak from Invader Zim pages as a rival pair. Note how the two Irken characters share green skin and red eyes but have completely different uniforms and PAK designs.

Two Irken invaders with the same species palette but different design identities. Takes about twenty minutes.

Logo and Character Display

Color both logo pages and the Invader Zim page as a title-and-character display set. Use the logo palette as a reference for how the show’s official coloring treats Zim’s design.

A display-ready collected page set starting with the title. Takes about fifteen minutes.

FAQ About Invader Zim Coloring Pages

Are these Invader Zim coloring pages free, and can I color them online?

Yes. Every page is free, with no account, email, or payment required. Download the PDF to print at home, or open it in the online coloring tool to color on screen.

What is Invader Zim about?

Invader Zim is a Nickelodeon animated series created by Jhonen Vasquez that premiered on March 30, 2001. The show follows Zim, an incompetent Irken alien invader sent to conquer Earth, assisted by his malfunctioning robot GIR. Zim’s only real opposition comes from Dib, a human boy who recognizes Zim as an alien but is dismissed by everyone around him. The series ran for two seasons before being canceled in 2002, and returned with the television film Invader Zim: Enter the Florpus in 2019.

Who are the main characters in Invader Zim?

The main characters are Zim, the Irken invader; GIR, his malfunctioning robot assistant; Dib Membrane, the human boy who opposes Zim; Gaz, Dib’s younger sister; and Professor Membrane, Dib and Gaz’s father and a famous scientist. Recurring characters include Tak, a female Irken rival to Zim, and Ms. Bitters, the school teacher.

What is Zim’s species?

Zim is an Irken, a species of alien invaders who are organized by height, with the tallest Irkens holding authority. Irkens have green skin, red eyes with no pupils, antennae, and carry a PAK unit on their backs that contains their life support, memories, and additional mechanical tools. Zim is considered an outcast by Irken society before the events of the series.

Why was Invader Zim canceled?

Invader Zim was canceled by Nickelodeon in 2002 after 27 episodes. The network determined that the show’s dark tone and unusual humor were not connecting well with its target audience of young children, and ratings were lower than expected. However, the series developed a significant cult following after cancellation, particularly among older children and teenagers, which eventually led to the 2019 Netflix film Invader Zim: Enter the Florpus.

Who are the episode characters in this set?

The set includes characters from specific Invader Zim episodes, including the Ham Demon, Chickenfoot, the Easter Platypus, the Lawn Gnome, Bloaty from Bloaty’s Pizza Hog, Burgerlord, Shnooky, Peepi, and others. These characters appear in single episodes or arcs and are part of the show’s distinct absurdist style.

Are these official Invader Zim coloring pages?

No. These are fan-made coloring sheets for personal use and are not affiliated with, licensed by, or endorsed by Jhonen Vasquez, Nickelodeon, Viacom, or any other rights holder of Invader Zim.

What age group are these pages best suited for?

Invader Zim coloring pages are best suited for children aged 8 and up, teenagers, and adults. The show’s dark humor and themes are aimed at older audiences, and the coloring pages reflect that aesthetic.

Start Coloring

Download any page by clicking the design. No account, email, or payment is required. Pages print directly from the browser at full resolution or open in the online coloring tool for screen use. Share finished pages on Facebook or Pinterest using the share buttons at the top of each design page.

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Jennifer Thoa – Content Editor & Designer

Jennifer Thoa is Content Editor and Designer at ColoringPagesOnly.com. Degree in Journalism and Creative Writing, University of Kansas. She writes and edits long-form educational articles on anime, film, animals, world cultures, and automotive history - verified against named primary sources before publication.