- Ultima Almighty
- Metatton
- Celestialsushi
- Muffet / Grace (voice)
- Courtney
- Bete Noire
- Djsmell
- Sans
- Geritz
- Asriel (Adult)
- Jocat
- Tobias
- KateMarie999
- Alphys / Isabelle (voice) (as KatieMarie999)
- Darcy Maguire
- Chara / Cam (Green boy) / Cop (voice) (as Lumisau)
- Maiden
- Zachary / Zachary's Mother / Hugo / Surveillance girl (voice) (as Melodiva) (as Maidenofmine)
- Jen McGregor
- Jessica Grey / Robin (Orange girl) (voice)
- Elissa Park
- Asriel / Undyne (voice) (as Adoxographist)
- Joe Porter
- Rave
- Rev
- Asgore / Mettaton (voice)
- Gael Rice
- Undyne (Undying Form)
- Meredith Sims
- Abigail (Light-Blue) / Lily (Green girl) (voice)
- Strelok
- Frisk / Akumu / Asgore / Flowey / Ronan Cass (voice)
- Oolay Tiger
- Toriel
- David 'Citrus' Z
- Papyrus / Noah (voice) (as Citrus)
- Zedrin
- Gaster / Sans (voice)
