- Jeff Bennett - Baron Von Steamer (voice)
- Katy Mixon - Barb (voice)
- Sophie Reynolds - Juniper (voice)
- Haley Tju - Karmi (voice)
- Andy Richter - Globby (voice)
- Stan Lee - Fred's Dad (voice)
- Susan Sullivan - Fred's Mom (voice)
- Gordon Ramsay - Bolton Gramercy (voice)
- Alton Brown - Yum Laboughé (voice)
- Isabella Gómez - Megan (voice)
- Daniel Henney - Tadashi (voice)
- Ben Feldman - Chris (voice)
- Christy Carlson Romano - Trina (voice)
- Will Friedle - Hardlight (voice)
- Nestor Carbonell - Chief Cruz (voice)
- Alan Tudyk - Alistair Krei (voice)
- Sean Giambrone - Richardson Mole (voice)
- Jane Lynch - Supersonic Sue (voice)
- Horatio Sanz - El Fuego (voice)
- Jenifer Lewis - Professor Granville (voice)
- Kirby - Cobra (voice)
- Nichole Sakura - Olivia (voice)
- Patton Oswalt - Mr. Sparkle (voice)
- Patton Oswalt - Mr. Sparkle / Dispatch Voice (voice)
- Stephen Heneveld
- Ben Juwono
- Paiman Kalayeh
- Sharon Flynn
- Mark McCorkle
- Bob Schooley
Scott Adsit interpreta a Baymax (voice) en la serie.
Ryan Potter hace el papel de Hiro (voice).
Jamie Chung hace el papel de Go Go (voice).
Khary Payton interpreta a Wasabi (voice) en la serie.
Genesis Rodriguez interpreta a Honey Lemon (voice) en la serie.
Maya Rudolph interpreta a Aunt Cass (voice) en la serie.
Brooks Wheelan hace el papel de Fred (voice).
David Shaughnessy interpreta a Heathcliff (voice) en la serie.
Capítulo disponible en las siguientes plataformas:
