Joker's van. He is male, loves pranks and jokes, and is cute when he's surprised. He hates Yeo-rin and is always cold to her. Only Bad Computer and Guest know that he is actually alive.

Harley Quinn's ATV and the only female member of the team. She always carries a collapsible squeaky hammer and is good at provoking opponents. Her appearance is reminiscent of a hyena. She is the leader of the team and is very assertive. She is wary of Yeo-rin.

Riddler's helicopter. He is arrogant, believing he is the smartest machine, and loves giving riddles. He is practically the youngest in the team. He likes question mark shapes. He is male and deliberately gives Yeo-rin difficult riddles, mocking her when she fails. He gives everyone else easy ones.

Penguin's duck-like amphibious vehicle. He uses an umbrella as his main weapon and is full of confidence. He is male and avoids Yeo-rin because he doesn't want to get involved with her.

Mr. Freeze's personal ice cream truck. He usually disguises himself as an ice cream truck and commits villainy with the team only because he has to. Surprisingly soft-hearted, he loves animals and is kind. He avoids Yeo-rin and often hangs out with Guest. He is male. His real name is Offensive Snow Tank III.

The boss of the Legion of Zoom. Originally a high-performance computer, for some reason he is currently trapped in a baseball stadium scoreboard. He is male. He regrets bringing Yeo-rin along and acts coldly whenever she hits on him.