The Babyboo, also spelled Baby Boo, is a child-like, human-looking ghost from the 2017 Continuum.
Behind the scenes
This ghost appeared throughout the Disney XD Promos, starting with Pickel and Peanut and Babyboo, released on the third day of October 2016.
As revealed in the behind-the-scenes video released by Disney for the XD Promos series, Babyboo, who is the only original character in the series, was inspired in design by the much bulkier Executioner ghost, and particularly the early design of him seen in Monster Ghosts. Whether this is enough to consider Babyboo the 2017 Continuum counterpart to the Executioner is somewhat debatable.