Many collectors like to refer to certain Cantina patrons as blink and you miss them characters.  Chances are that even if you were medically unable to blink, you’d still miss this fly-headed guy.  When the interior Cantina scenes were re-shot to replace many of the “off the shelf” alien masks with more original designs, Tzizvvt was almost completely eliminated.  He can sort of be seen in an alcove over Kabe’s head as the Sandtroopers questions Wuher about that Walrusman arm on the floor.

That being said, he is an alien and may be more kid-friendly than boring old humans like Yerka Mig or Debnoli, even if he has a less substantial presence in the film.  He also seems to be wearing a classic Star Wars jumpsuit, which could allow some shared tooling.