- Matthias Klages
- voice dubbing (52 episodes, 2018-2020)
- Katie McWane
- voice director (52 episodes, 2018-2020)
- Sergey Popkov
- systems administrator: Mainframe Studios / senior systems administrator: Mainframe Studios (51 episodes, 2018-2020)
- Kim Dent Wilder
- senior vice president of production and operations: Mainframe / senior vice president of production and operations: Mainframe Studios (50 episodes, 2018-2020)
- Andrew Defty
- production operations / production operations: Mattel Creations (47 episodes, 2018-2020)
- Daphne Batistella
- production coordinator / production coordinator: Mainframe Studios (26 episodes, 2018-2019)
- Jesyca C. Durchin
- creative supervision / creative supervision: Mattel Creations (26 episodes, 2018-2019)
- Teri Matthews
- production coordinator: Mainframe Entertainment Inc. / production coordinator / production coordinator: Mainframe Studios (26 episodes, 2018-2019)
- Trevor MacDonald
- senior systems administrator: Mainframe Studios / desktop support: Mainframe Studios (25 episodes, 2018-2020)
- Lisbeth Rosana
- production coordinator (24 episodes, 2018-2020)
- Roberto Velazquez
- production coordinator (24 episodes, 2018-2020)
- Rachel Reid
- production coordinator: Mainframe / production coordinator / production coordinator: Mainframe Studios (24 episodes, 2018-2019)
- Renevee Romero
- production coordinator (24 episodes, 2018-2019)
- Martin Clavio
- talent acquisition specialist: Mainframe Studios (22 episodes, 2019-2020)
- Natalia Araujo Lima
- production coordinator / production coordinator: Mainframe Studios (21 episodes, 2019-2020)
- Josh Mandel
- digital producer (18 episodes, 2018)
- Sarah Serata
- production supervision / production supervisor (16 episodes, 2018-2019)
- Brenda Yau
- studio manager: Mainframe Studios (15 episodes, 2018)
- Steven Elford
- vice president of creative technology: Mainframe Studios / vice president of research & development: Mainframe Studios (12 episodes, 2018-2020)
- Michael Hefferon
- president: Mainframe / president: Mainframe Studios (12 episodes, 2018-2020)
- David Tilgner
- studio manager: Mainframe Studios (12 episodes, 2018-2020)
- David Choi
- director of finance: Mainframe Studios (11 episodes, 2018-2020)
- Ivan Liu
- senior financial analyst: Mainframe Studios (11 episodes, 2018-2020)
- Hilary Nicol
- production coordinator: Mainframe Studios / production coordinator (11 episodes, 2018-2020)
- Madara Sturmane
- project accountant: Mainframe Studios (11 episodes, 2018-2020)
- Marie Sutherland
- production accountant: Mainframe Studios (11 episodes, 2018-2020)
- Katherine Tam
- controller: Mainframe Studios / production controller: Mainframe Studios (11 episodes, 2018-2020)
- Ralph Wing
- project accountant: Mainframe Studios / senior project accountant: Mainframe Studios (11 episodes, 2018-2020)
- Alexandra Goodman
- recruiter: Mainframe Studios (11 episodes, 2018)
- Nathan De Jager
- desktop support: Mainframe Studios / senior systems administrator: Mainframe Studios (10 episodes, 2018-2020)
- Shahriar Kiamanesh
- systems administrator: Mainframe Studios / senior systems administrator: Mainframe Studios (10 episodes, 2018-2020)
- Paola Chavez
- recruiter: Mainframe Studios (10 episodes, 2018)
- Laura Wheeler
- director of business affairs: Mainframe Studios (10 episodes, 2018)
- Jiang Bai
- systems administrator: Mainframe Studios (9 episodes, 2018)
- Corey Barber
- systems administrator: Mainframe Studios (9 episodes, 2018)
- Victoria Elrod
- payroll manager: Mainframe Studios (9 episodes, 2018)
- Alexandra George
- production accounting coordinator: Mainframe Studios (9 episodes, 2018)
- Christine Read
- vice president of finance: Mainframe Studios (9 episodes, 2018)
- Jamie Savella-Mach
- recruiter: Mainframe Studios (9 episodes, 2018)
- Andy Wu
- desktop support: Mainframe Studios (9 episodes, 2018)
- Saul Blinkoff
- consulting director (8 episodes, 2018-2019)
- Teale Sperling
- story supervisor (8 episodes, 2018)
- Fariya Yu
- payroll & hr administrator: Mainframe Studios (8 episodes, 2018)
- Barbara Zelinski
- recruiter: Mainframe Studios (6 episodes, 2018)
- K. Dawson Wang
- post production coordinator / Post Production Coordinator (5 episodes, 2018-2019)
- Peter Chow
- accounts payable administrator: Mainframe Studios (4 episodes, 2018-2020)
- Sonia Meza-Leon
- production operations / Post Production Supervision (4 episodes, 2018-2019)
- Jaya Ramdath
- script coordinator (4 episodes, 2019)
- Michelle Kennedy
- recruiter: Mainframe Studios / senior talent acquisition specialist: Mainframe Studios (3 episodes, 2018-2020)
- Marc Bélanger
- director of development: Mainframe Studios / director of hr & talent: Mainframe Studios / director of human resources: Mainframe Studios / director of talent and development: Mainframe Studios (2 episodes, 2018-2020)
- Brittney Sherman
- Post Production Manager / post production manager (2 episodes, 2018-2019)
- Mila Lang Clachar
- production coordinator: Mainframe Studios (2 episodes, 2018)
- Christopher Dempsey
- production assistant: Mainframe Studios (2 episodes, 2018)
- Kim Gonzalez
- production assistant: Mainframe Studios (2 episodes, 2018)
- Kyla Hawkins
- production assistant: Mainframe Studios (2 episodes, 2018)
- Lavon Oloo
- production assistant: Mainframe Studios (2 episodes, 2018)
- Miranda Radok
- production accounting coordinator: Mainframe Studios (2 episodes, 2018)
- James Sealy
- production assistant: Mainframe Studios (2 episodes, 2018)
- Hardeesh Tumber
- recruiter: Mainframe Studios (2 episodes, 2018)
- Emma Wilder
- production assistant: Mainframe Studios (2 episodes, 2018)
- Ryan Tengel
- production coordinator (2 episodes, 2019)
- Nitin Kumar
- vice president of technology and pipeline: Mainframe Studios (2 episodes, 2020)
- Kevin Bush
- Post Production Media Manager (1 episode, 2018)
- J.C. Cheng
- Production Supervision (1 episode, 2018)
- Alexandra George
- production accounting coordinator: Mainframe Studios (1 episode, 2018)
- Christine Reed
- vice president of finance: Mainframe Studios (1 episode, 2018)
- Danny Van
- production coordinator: Mainframe Studios (1 episode, 2018)
- Roxy Zagar
- production assistant: Mainframe Studios (1 episode, 2018)
- Isveta Anagnostos
- assistant controller: Mainframe Studios (1 episode, 2020)
- Ilinca Cojocaru
- production coordinator: Mainframe Studios (1 episode, 2020)
- Amir Dastgir
- desktop support: Mainframe Studios (1 episode, 2020)
- Josh Gugliotta
- senior talent acquisition specialist: Mainframe Studios (1 episode, 2020)
- Sheridan Hamilton
- production assistant: Mainframe Studios (1 episode, 2020)
- Shirley Ko
- payroll manager: Mainframe Studios (1 episode, 2020)
- Philip Matthews
- director of corporate accounting: Mainframe Studios (1 episode, 2020)
- Rigel Pascual
- production assistant: Mainframe Studios (1 episode, 2020)
- Jayma Pearson
- technical projects coordinator: Mainframe Studios (1 episode, 2020)
- Maria Tran
- information technology coordinator: Mainframe Studios (1 episode, 2020)
- Tacia Voisey
- director of business affairs: Mainframe Studios (1 episode, 2020)
- Bryan Yu
- production assistant: Mainframe Studios (1 episode, 2020)
- Mike Zita
- production assistant: Mainframe Studios (1 episode, 2020)
- Luis Zuniga-Ortiz
- desktop support: Mainframe Studios (1 episode, 2020)
- Steven Louis Goldenberg
- production accountant (uncredited) (3 episodes, 2020)
