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|First appearance||Darkness Rising, Part 1|
|Voiced by||Markie Post|
June Darby is Jack's mother and is one of the only adult civilian humans to know of the autobots. She was initially unaware of the Autobots' existence for long until she was targeted by MECH and Airachnid. She was saved by Jack and Arcee and told the whole truth, after which Jack and Arcee took her to the Autobot Base to meet the rest of Team Prime. June also revealed to Arcee that Jack's dad left them and that is why she's overprotective.
Jack and his motorcycle
June called Jack in Darkness Rising, Part 1. June Darby was introduced in Darkness Rising, Part 2, where Jack had brought a motorcycle into their garage. She questioned him and allowed him to keep it, as long as Jack wore his helmet every time he rides. She also hopes he would take her out for a ride.