The episode guest stars Aziz Ansari as DMO, Paul F. Tompkins as the SMOs, and Chuck McCann as Moe.

However, the three are pursued by security guard SMOs (voiced by Tompkins); Finn, Jake, and BMO eventually run into Moe Giovanni (voiced by McCann), the ancient and benevolent human-cyborg creator of the MOs, who explains BMO's backstory.

DMO and the security SMOs (voiced by Paul F. Tompkins) soon catch onto Finn, Jake, and BMO's scheme and give chase.

BMO hacks into one of the SMOs and learns the location of the core system driver installation deck.

There, the three meet Moseph "Moe Mastro Giovanni" (voiced by Chuck McCann), the ancient and benevolent cyborg creator and leader of the MOs.

The original ending featured Moe telling Finn, Jake, and BMO to leave because he has to use the bathroom; Wolfhard noted that this was "wisely vetoed" by Herpich and Muto.

[1] According to storyline writer Jack Pendarvis, series creator Pendleton Ward asked him to be in the show after seeing one of his performances.

Tompkins had previously voiced an unrelated character in the fourth season episode "Ignition Point".

"[11] Furthermore, Sava wrote that the entry's climax, featuring Moe explaining that BMO was built to understand fun was "an interesting insight into the philosophy behind this series" because the "childlike mentality of fun and play is an enlightened state in Adventure Time, and BMO reaches that every day with Finn and Jake.