Maxwell Atoms

Characters played by Maxwell Atoms

Career Overview

Maxwell Atoms has 56 screen credits in a career dating back to 1996. Their work spans 4 cinematic universes — most prominently The Grim Adventures of Billy & Mandy Collection with 3 titles. Signature works include Happy Halloween, Scooby-Doo!, Scooby-Doo! The Sword and the Scoob, Billy & Mandy's Big Boogey Adventure. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.

Personal Facts

Known For

Writing

Gender

male

Known Credits

56

Birth Date

1974-01-21

Birth Place

Colorado Springs, Colorado, United States

Known For

• 

  Happy Halloween, Scooby-Doo!
• 

  Scooby-Doo! The Sword and the Scoob
• 

  Billy & Mandy's Big Boogey Adventure
• 

  Evil Con Carne
• 

  Underfist: Halloween Bash
• 

  The Grim Adventures of the Kids Next Door

Associated Universes

Universe traveler — spans 4 universes

• The Grim Adventures of Billy & Mandy Collection (3 titles)
• Codename: Kids Next Door Collection (1 titles)
• Cartoon Network Invaded Collection (1 titles)
• Apu Collection (1 titles)

Frequent Collaborators

• Grey DeLisle (6 collaborations)
• Rachael MacFarlane (4 collaborations)
• Greg Ellis (3 collaborations)
• Richard Steven Horvitz (3 collaborations)
• Greg Eagles (3 collaborations)
• Vanessa Marshall (3 collaborations)
• C.H. Greenblatt (3 collaborations)
• Phil LaMarr (3 collaborations)
• Armin Shimerman (3 collaborations)
• Frank Welker (2 collaborations)

Credits

• visual effects (1 credits)

  • Naked Mole Rat Gets Dressed: The Underground Rock Experience

    character designer

    visual effects
    2022

• art (8 credits)

  • Naked Mole Rat Gets Dressed: The Underground Rock Experience

    art direction

    art
    2022
  • Jellystone!

    - Jellystone Noir (2024) ... storyboard artist art
    2021
  • Fish Hooks

    - The Big Woo (2014) ... storyboard artist art

    - Fish Taco (2014) ... storyboard artist art

    - Don't Let the Fish Drive the Party Bus (2014) ... storyboard artist art

    - Surfing the Interwet (2014) ... storyboard artist art

    - Hare and Back Again (2013) ... storyboard artist art
    2010
  • Underfist: Halloween Bash

    storyboard artist

    art
    2008
  • Billy & Mandy's Big Boogey Adventure

    storyboard artist

    art
    2007
  • Chowder

    - My Big Fat Stinky Wedding (2009) ... storyboard artist art

    - The Puckerberry Overlords (2008) ... storyboard artist art
    2007
  • The Grim Adventures of Billy and Mandy

    - Billy and Mandy Moon the Moon (2007) ... storyboard artist art

    - Billy & Mandy Begins (2006) ... storyboard artist art

    - Billy & Mandy Save Christmas (2005) ... storyboard artist art

    - Ecto Cooler (2005) ... storyboard artist art

    - Wishbones (2005) ... storyboard artist art
    2001
  • The Grim Adventures of Billy & Mandy: Meet the Reaper

    storyboard artist

    art
    2000

• production (7 credits)

  • Scooby-Doo! The Sword and the Scoob

    producer

    production
    2021
  • Happy Halloween, Scooby-Doo!

    producer

    production
    2020
  • Underfist: Halloween Bash

    executive producer

    production
    2008
  • Billy & Mandy: Wrath of the Spider Queen

    executive producer

    production
    2007
  • Billy & Mandy's Big Boogey Adventure

    executive producer

    production
    2007
  • Billy and Mandy Save Christmas

    executive producer

    production
    2005
  • Evil Con Carne

    executive producer

    production
    2001

• directing (11 credits)

  • Scooby-Doo! The Sword and the Scoob

    director

    directing
    2021
  • Jellystone!

    - Marinara Madness (2025) ... director directing

    - Theme Work Makes the Dream Work (2025) ... director directing

    - Crisis on Infinite Mirths (2025) ... director directing

    - Jellystone Noir (2024) ... director directing

    - Girl, You My Friend! (2024) ... director directing
    2021
  • The Patrick Star Show

    - Neptune’s Ball (2023) ... director directing

    - The Prehistoric Patrick Star Show (2023) ... director directing

    - Fun & Done! (2023) ... director directing

    - A Space Affair to Remember (2023) ... director directing
    2021
  • Happy Halloween, Scooby-Doo!

    director

    directing
    2020
  • Teen Titans Go!

    - The Great Disaster (2019) ... director directing
    2013
  • Fish Hooks

    - Labor of Love (2013) ... director directing

    - Peopleing (2011) ... director directing

    - Doggonit (2010) ... director directing

    - Happy Birthfish Jocktopus (2010) ... director directing

    - Underwater Boy (2010) ... director directing
    2010
  • The Grim Adventures of the Kids Next Door

    director

    directing
    2007
  • Evil Con Carne

    director

    directing
    2001
  • The Grim Adventures of Billy and Mandy

    - Meet the Reaper (2001) ... director directing
    2001
  • The Grim Adventures of Billy & Mandy: Meet the Reaper

    director

    directing
    2000
  • Billy and Mandy in: Trepanation of the Skull and You

    director

    directing
    1996

• writing (17 credits)

  • Scooby-Doo! The Sword and the Scoob

    writer

    writing
    2021
  • Jellystone!

    - Spy Thriller (2025) ... story writing

    - Snowdodio (2025) ... story writing

    - Epic Rager (2024) ... story writing

    - Jellystone Noir (2024) ... story writing

    - Lotions 11 (2024) ... story writing
    2021
  • Happy Halloween, Scooby-Doo!

    screenplay

    writing
    2020
  • Teen Titans Go!

    - Warner Bros. 100th Anniversary (2023) ... characters writing

    - The Great Disaster (2019) ... writer writing
    2013
  • Fish Hooks

    - The Big Woo (2014) ... writer writing

    - The Big Woo (2014) ... story writing

    - Freshwater Lives (2014) ... story writing

    - Brothers of a Feather (2014) ... story writing

    - I Have This Friend... (2014) ... story writing
    2010
  • Underfist: Halloween Bash

    writer

    writing
    2008
  • The Grim Adventures of the Kids Next Door

    writer

    writing
    2007
  • Billy & Mandy: Wrath of the Spider Queen

    writer

    writing
    2007
  • CN Invaded Part 5: Billy & Mandy Moon the Moon

    writer

    writing
    2007
  • Billy & Mandy's Big Boogey Adventure

    writer

    writing
    2007
  • Chowder

    - My Big Fat Stinky Wedding (2009) ... story writing

    - The Puckerberry Overlords (2008) ... story writing
    2007
  • Billy and Mandy Save Christmas

    writer

    writing
    2005
  • Billy & Mandy's Jacked-Up Halloween

    writer

    writing
    2003
  • Evil Con Carne

    writer

    writing
    2001
  • The Grim Adventures of Billy and Mandy

    - El Dia De Los Muertos Estupidos (2007) ... writer writing

    - Short Tall Tales (2007) ... writer writing

    - Billy and Mandy Moon the Moon (2007) ... writer writing

    - Waking Nightmare (2007) ... writer writing

    - Company Halt (2007) ... writer writing
    2001
  • The Grim Adventures of Billy & Mandy: Meet the Reaper

    writer

    writing
    2000
  • Cow and Chicken

    - The Loneliest Cow (1999) ... storyboard writing

    - Cow's Magic Blanket (1999) ... storyboard writing

    - Chachi, the Chewing Gum Seal (1999) ... writer writing

    - Chachi, the Chewing Gum Seal (1999) ... storyboard writing

    - Night of the Ed (1998) ... storyboard writing
    1997

• crew (2 credits)

  • Underfist: Halloween Bash

    creator

    crew
    2008
  • Billy & Mandy: Wrath of the Spider Queen

    creator

    crew
    2007

• actors (8 credits)

  • Jellystone!

    - Marinara Madness (2025) ... Zandor / Alfy Gator (voice) actor actors
    2021
  • Helluva Boss

    - Return to Loo Loo Land (2026) ... Loo Loo (voice) actor actors

    - C.H.E.R.U.B. (2021) ... Additional Voices (voice) actor actors

    - Loo Loo Land (2020) ... Loo Loo / Additional Voices (voice) actor actors

    - Murder Family (2020) ... Ralphie / Jarold / Additional Voices (voice) actor actors
    2020
  • Fish Hooks

    - Doris Flores Gorgeous (2010) ... Bo Gregory / Hugh Edmonson (voice) actor actors
    2010
  • Underfist: Halloween Bash

    Jeff the Spider (voice)

    actor

    actors
    2008
  • Billy & Mandy: Wrath of the Spider Queen

    Jeff the Spider (voice)

    actor

    actors
    2007
  • Billy & Mandy's Big Boogey Adventure

    I'll Cut You Guy / Pirate #2 / Horrorbot / Burnt Skeleton Guard (voice)

    actor

    actors
    2007
  • The Grim Adventures of Billy and Mandy

    - Spidermandy (2006) ... Jeff the Spider (voice) actor actors

    - Herbicidal Maniac (2006) ... Jeff the Spider (voice) actor actors

    - Keeper of the Reaper (2006) ... Jeff the Spider (voice) actor actors

    - Jeffy's Web (2005) ... Jeff the Spider (voice) actor actors

    - Spider's Little Daddy (2004) ... Jeff the Spider (voice) actor actors
    2001
  • Billy and Mandy in: Trepanation of the Skull and You

    Billy (voice)

    actor

    actors
    1996

• creators (1 credits)

  • The Grim Adventures of Billy and Mandy

    creator

    creators
    2001

• editing (1 credits)

  • The Grim Adventures of Billy & Mandy: Meet the Reaper

    negative cutter

    editing
    2000