|Not to be confused with "Villains' Night In".|
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- Lord Boxman
- Professor Venomous
- Darrell (pictured, video)
- Shannon (pictured)
- Mikayla (pictured)
- Billiam Milliam
- Billiam's Minions (non-speaking)
- Billiam's Bodyguards (non-speaking)
- Big Bull Demon
- Dogmun (non-speaking)
- Succulentus (non-speaking)
- Cool Sun
- Wat Mel (non-speaking)
- Hon Dew
- Nappa (non-speaking)
- Toby Jones announced Justin McElroy as the voice of a new villain in this episode on his Twitter. Justin McElroy then confirmed this on his own Twitter. In that case, McElroy voices the villain, Billiam Milliam.
- This episode features the song "Two of Hearts".
- The video Lord Boxman plays to Cosma and Vormulax, is a reference to Looney Tunes' Bugs Bunny cartoon and gags.
- It's revealed in this episode that Lord Boxman is currently working on a project involving Glorbs.
- After watching Lord Boxman dance, Professor Venomous says it's "inane", which lines up with Fink saying the same thing after watching a video of Lord Boxman in "Villains' Night In".
- This episode, along with "Villains' Night In", are the last episodes aired in 2017.
- The fourth wall is broken when the video Lord Boxman plays to Cosma and Vormulax ends you can see a word says "A Cartoon Network Studios Productions".
- This episode takes place at the same time with the next episode, "Villains' Night In".
- Flashbacks from this episode are shown in "Action News".
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