>>9506258They weren't really meant to be shown no, but Videl was openly laying on the table.. That dude with the thing on his head hints that it's his favorite female character, and he's stated that's Videl too in some other vid on the DB site lol. They might as well have said it for her.
The other ones that had been made clear through photoshopping besides her were Namek Bulma, Imperfect Cell and King Kai. The others are conjecture to some xtent, but very logical options given the hints are Hit, Cooler and Dodoria.
