When The Clockmaker struck a conference call with the other Celestials, this version of the Professor supposedly showed up.

It is later revealed though however that the Flickerer stowed them away, taking their physical form as a disguise.

In one version of events, this Professor was responsible for creating the Glam Gizmo with the Max Professor, but as people intervene, it's understood that this morally corrupt version was a shadow cast from the dark dimensions, leaving the identity of this Professor slightly lesser understood.