The Simpsons: Tapped Out - Can't find character icons

[ataeaf]

I am trying to find the character conversation heads in the game (even though I know they've been uploaded here). But a lot the earlier character heads just don’t appear, and I’ve checked both the APK and the DLC files. I know the dlc files are stored in their own folders. But earlier levels only have the level-up character and number (for example, Bart in Level 2).