WMG / Chuck E. Cheese

Mitzi is the wife of the Pizza Time Theatre Chuck E and is the mother of the Avenger or Rockstar Chuck.

According to some fan theories, Mitzi married the PTT incarnation of Chuck E (1977-94) and they gave birth to either the Avenger (1997-2012) or Rockstar (2012-) versions, or sometimes both versions. Considering Showbiz did save CEC from bankruptcy, it would make sense.