Recurring Character on the Cartoon Network show Adventure Time created by Pendleton Ward.
Voiced By: Edit
Former storyboard artist Niki Yang voices BMO in English.
Image: Cartoon Network, "BMO" (2010), screen shot, from Adventure Time.
Character Description: Edit
BMO is a sentient video game console that is entertainment and companion roommate to the main protagonists Finn and Jake, but has also had episodes all their own.
The character is a loyal, trusting, and helpful friend who is protective of Finn and Jake, though will often wander off on their own adventure, at times often instigated from their own imagination such as having conversations with their own reflection that they dubbed "Football" (episode "Five Short Graybles") and applied to ordinary objects and creatures to a noire plot (episode "BMO Noire"). There are also hints from the same episodes that BMO might be suffering from some form of Disassociative Identity Disorder.
BMO is neither male nor female. In the show both the pronoun "he" and the term "m'lady" have been used in reference to BMO. and the character themselves has identified or presented as one or the other.
They represent a form of Undisclosed Gender Depiction in fiction which is a type of depiction in which the character's gender and/or sex hidden and not told about and is sometimes kept a secret for the entire story. In this case, the use of the foil "Robot" which has been commonly written as genderless.
"...Nothing in the canon states outright that BMO is female, male, or otherwise. However, a strong clue for the latter is that in "Fionna and Cake," an alternative universe gender-swap episode (meaning all female characters are shown as male and vice versa), BMO is the only character with no visible change, apart from his controller..."
Wikipedia, "Adventure Time" (n.d) at https://en.wikipedia.org/wiki/Adventure_Time#Cast
Nonbinary.org, "Fictional depictions of nonbinary gender" (n.d) http://nonbinary.org/wiki/Fictional_depictions_of_nonbinary_gender#Animation at http://nonbinary.org/wiki/Fictional_depictions_of_nonbinary_gender#Animation