- Casting Gag: Invoked — In the web DVD commentary of episode 1, it was confirmed that Crunchyroll requested Bang Zoom record the dub because of their experience with ONE's other manga adaptation. The ADR director and one of the writers for OPM were brought on board for MP100, and Max Mittelman (Saitama) and Erik Kimerer (Sonic) ended up voicing Ritsu and Teru.
- Executive Meddling: Just like what happened with the Latin American Spanish dubs of Miss Kobayashi's Dragon Maid and Free!, the decision of using Japanese honorifics there was forced unto the voice actors' throats by Crunchyroll, due to internal policies of the company, according to the people who worked on the dub.
- Image Source: For Everyone's Baby Sister.
- No Celebrities Were Harmed: According to Chris Niosi and Kyle McCarley, Jim Carrey and Michael Jackson were somewhat of an influence on their voices/acting for Reigen and Mob.
- Relationship Voice Actor:
- Shout-Out: According to Chris Niosi, several of Reigen's quips as well as some of his grunts were inspired by several shows / celebrities he watched such as Dexter's Laboratory, Rick & Morty and Ed, Edd n Eddy.
- The Wiki Rule: Mob Psycho 100 Wiki.
Trivia / Mob Psycho 100