Moon Girl and Devil Dinosaur #1 (2015). Lunella Lafayette and the red T. rex on the cover by Amy Reeder.

1st Appearance, 1st Cover, 1st Solo Title

First Appearance of Moon Girl

Moon Girl and Devil Dinosaur #1

November 2015 · Marvel · Modern Age

A nine-year-old smarter than every adult in the room, including the ones who built the room. Plus a T. rex.

Key Issue

Created by Brandon Montclare · Amy Reeder · Natacha Bustos

By Atomm Updated

The first appearance (1st app) of Moon Girl is Moon Girl and Devil Dinosaur #1 (November 2015), created by Brandon Montclare and Amy Reeder with art by Natacha Bustos. Lunella Lafayette is a nine-year-old genius from the Lower East Side who pulls Jack Kirby's 1978 Devil Dinosaur through a dimensional rift and ends up bonded to him. The book ran 47 issues. Marvel canonized her IQ as higher than Reed Richards's, which the books then ran with as the central character note: she's the smartest person in the room, and the room usually contains adults who've saved the world. Diamond White voices her in the 2023 Disney+ animated series.

Quick Facts

Debut
Moon Girl and Devil Dinosaur #1 (November 2015)
Real name
Lunella Lafayette
Creators
Brandon Montclare and Amy Reeder (writers, co-creators); Natacha Bustos (artist, co-creator)
Publisher
Marvel Comics
First enemy
The Killer-Folk
First ally
Devil Dinosaur (her bonded T. rex)
Team affiliations
None as of debut. Later: brief stints with the Champions and the Future Foundation.

First Appearance

  1. Moon Girl and Devil Dinosaur #1 cover
    First Appearance, First Cover, First Solo Title November 2015

    Moon Girl and Devil Dinosaur #1

    By Brandon Montclare, Amy Reeder, Natacha Bustos

    First appearance, first cover, and first solo title in one issue. Brandon Montclare and Amy Reeder write; Natacha Bustos pencils; Reeder covers. Marvel relaunched Jack Kirby's 1978 Devil Dinosaur as the second lead, which means Lunella's debut is also the character's first canonical Earth-616 reappearance since the 1970s.

    Read the full breakdown

Creation Story

Marvel in 2015 had the same problem every legacy publisher always has: the universe was full. Every slot was taken. Every name was a legacy holder. Brand-new characters that actually stuck were rare, and the ones that did were mostly variants on existing titles. Spider-Gwen worked because the Spider-Man market had room. Kamala Khan worked because Ms. Marvel was a vacated mantle. Anything starting from zero was a hard sell.

Brandon Montclare and Amy Reeder pitched a hard sell. A nine-year-old Black girl from the Lower East Side. No legacy mantle. No teen-superhero archetype to borrow from. The hook was that she’d be paired with Jack Kirby’s Devil Dinosaur, the literal 1978 character, dragged into Earth-616 through a dimensional accident. Not a remake. Not a reimagining. The actual Kirby dinosaur. That detail mattered more than it sounds, because it gave the book a Marvel-history claim it wouldn’t have had with a generic T. rex sidekick.

Natacha Bustos drew the interiors. Her style was nothing like what Marvel was shipping that month. Looser, kid-paced, more European-comics in its rhythm. Lunella’s design (compact, goggles, helmet hair) read clean against the panel layouts in a way that signaled the book wasn’t trying to compete with the standard cape titles. Reeder covered the early issues. The package was specific and intentional and didn’t really look like anything else on the new-release rack in late 2015.

The book ran 47 issues across nearly four years. It stayed niche the entire run. That’s a feature, not a bug. It meant the same writers and the same artist held tone for the full arc, which is rare for a modern Marvel ongoing. The character got the IQ ranking, the Inhuman gene, the body-swap arc with Devil, the Champions cameo, and the slow accumulation of crossover appearances that turn a niche book into a fixture. By the time the title ended in 2019, Lunella was a permanent piece of the Marvel toy box.

Then 2023 happened. Disney+ launched the animated series. Diamond White voiced Lunella, Tatyana Ali played Adria, Fred Tatasciore voiced Devil. The show ran two seasons and ended up being one of the strongest Disney/Marvel animated projects of its era. Tay Money’s theme song spent enough time in heavy rotation that kids who’d never read a Marvel comic could sing it back. The animated series did what the comic run had spent four years not doing: pushed Lunella into the Marvel-mainstream consciousness.

First Appearance, First Cover, First Solo Title: Moon Girl and Devil Dinosaur #1

The book hit shelves November 25, 2015, with a February 2016 cover date. 32 pages. Cover price was $3.99, which was the standard Marvel #1 price for the era. The cover is Amy Reeder: Lunella in goggles, hand outstretched, the red T. rex looming behind her. The composition is deliberately not a fight scene. There’s no villain on the cover. It’s a girl and her dinosaur, and the visual language is closer to a YA book jacket than a typical Marvel #1, which made it stand out on a rack mostly full of Secret Wars tie-ins.

Print run was modest. Marvel didn’t market the book as a tentpole. There was no variant-cover frenzy beyond the standard Marvel ratio incentives, no “blank sketch cover” gimmick, no big retailer-incentive treatment. It launched quietly and earned its audience issue by issue.

The story opens in the Lower East Side. Lunella is in fourth grade at P.S. 20, hiding her IQ from her teachers and her classmates because she’s already figured out that being the smartest kid in the room is socially expensive. She’s working on a project at home: a Kree omni-wave projector she’s reverse-engineered from notes. The thing accidentally pulls a hostile tribe of Killer-Folk through a dimensional rift, with Devil Dinosaur in pursuit. Devil ends up bonded to her. The Killer-Folk become her first recurring antagonists. Most of the original creative team’s intentions for the book are visible inside the first 22 pages.

Two more details that matter for the collector framing. First, the issue is also the first appearance of Lunella’s mom Adria Lafayette, who becomes a major supporting character through the run and is voiced by Tatyana Ali in the animated series. Second, the issue resurfaces Devil Dinosaur in Marvel canon for the first time since the 1970s. Most collectors don’t think of MGDD #1 as a Devil Dinosaur key, but technically it is. The 1978 Kirby Devil Dinosaur #1 is the original first appearance; the 2015 issue is the first canonical Earth-616 reappearance.

For collectors, MGDD #1 has been the slow-building modern key it deserves to be. The print run is small enough that high-grade survival is reasonable but not abundant. The animated series in 2023 reset the demand curve. A CGC 9.8 first print sat in the $40 to $80 range for most of 2017 to 2022, and roughly tripled in the year after the show launched. It’s still cheap by absolute measure, which is part of why it’s one of the more interesting modern Marvel keys to think about: a character with real cultural traction, a creative team that delivered on the original premise, and a debut book that hasn’t yet been priced like the obvious modern keys around it.

Key subsequent appearances

After the debut, these are the issues collectors and historians reach for next.

  1. 2016

    Moon Girl and Devil Dinosaur #4

    First Inhuman-gene reveal. Lunella tests positive for the Terrigen marker, which sets up the body-swap arc.

  2. 2016

    Moon Girl and Devil Dinosaur #9

    The IQ panel. Reed Richards's tests rank Lunella as the smartest person in the Marvel Universe. The line gets quoted constantly afterward.

  3. 2017

    Champions #5

    Champions Recruit

    Mark Waid and Humberto Ramos. Lunella's first crossover outside her own title and the issue that started positioning her as a peer to Marvel's teen-hero bench rather than a niche solo lead. She doesn't formally join, but the framing matters: it's the moment the wider Marvel line treats her as a fixture.

  4. 2019

    Moon Girl and Devil Dinosaur #47

    Series Finale

    Brandon Montclare and Alitha Martinez. The book ends after a four-year run. Lunella stays in continuity but loses her solo title.

In adaptations

Film, TV, animation, and game appearances.

  1. 2023

    Moon Girl and Devil Dinosaur

    Animated

    Starring:Diamond White

    Disney Channel and Disney+ animated series. Diamond White voices Lunella; Tatyana Ali plays her mom Adria; Fred Tatasciore plays Devil. The show ran two seasons and is widely regarded as the strongest Disney/Marvel animated project of its era. Tay Money's theme song became a minor hit on its own.

Frequently asked questions

The questions readers and collectors ask most.

What is Moon Girl's first appearance?

Moon Girl and Devil Dinosaur #1, on stands in late November 2015 with a February 2016 cover date. Brandon Montclare and Amy Reeder co-write; Natacha Bustos handles interior art; Reeder draws the cover. The issue introduces nine-year-old Lunella Lafayette, the Killer-Folk antagonists, and pulls Jack Kirby's 1978 Devil Dinosaur into Earth-616 in the same story. First appearance, first cover, and first solo title all collapse into one book, which is unusual for a modern Marvel debut.

Is Moon Girl really the smartest person in the Marvel Universe?

Yes, in canon. Reed Richards tested her in Moon Girl and Devil Dinosaur #9 (September 2016) and she scored higher than him. The IQ ranking is reaffirmed multiple times across the run and across crossovers. It's one of those Marvel facts that sounds like a gimmick but actually shapes the writing: Lunella solves problems by out-thinking every adult in the room, and the books treat that as the central character note rather than a punchline.

Who created Moon Girl?

Brandon Montclare and Amy Reeder are co-credited as the writing team and the character's co-creators. Natacha Bustos is also a co-creator and is the primary interior artist on the run. Reeder pencilled the early covers but moved off interior art before issue #1. Some Marvel internal materials credit only Montclare and Reeder for the character; Bustos's role in the visual design (Lunella's silhouette, the goggles, the layout language of the early issues) is often acknowledged in interviews even when the formal credits don't reflect it.

Is Moon Girl and Devil Dinosaur #1 valuable?

Yes, but not at the tier of Big Two debuts from the same era. High-grade copies (CGC 9.8) trade in the low-to-mid hundreds, with sharper movement around the 2023 Disney+ animated series launch. The print run was modest for a 2015 Marvel #1, and the book wasn't an instant collector target on release. The Diamond White animated series is what put it on most collectors' radar, almost a decade after publication.

How does Devil Dinosaur fit into this?

Devil is a Jack Kirby creation from 1978 (Devil Dinosaur #1, by Kirby alone, ran nine issues). Marvel mostly shelved him for forty years. The 2015 series isn't a remake or a reboot. It's the literal Kirby T. rex pulled forward in time through a dimensional rift Lunella accidentally opens. That's what makes the book unusual structurally: it's a new-character debut and a forty-year-old-character return at the same time, in the same book, on the same cover.