User blog comment:TotalDramaFan82498/Just to Clarify Who's Eligible for TDPRR/@comment-24971793-20150223214201/@comment-25297892-20150225114818

As much they can be confusing Julie's answers can give lot of hints about the characters eligible and excluded from TDPRR:

Lot of fans asked her about Noah & Owen and she didn't reply saying "Do you mean a character?" as she did with Tyler or Beverly, this means that she know them because she SAW them in the cast and she doesn't know the other two because she didn't see them in the cast.

Of course this theory is a little courageous considering she may had seen a cast of a previous season to know Owen and Noah, but either if she saw TDI's or TDWT's cast she should remember who's Tyler (quite automatically, because usually a fans asks about the character and not the name of the actor, no?) but she didn't, that means that her memory of him wasn't recently called up and this logically brings to imagine she didn't have to remember Tyler in the last period because he wasn't put in RR cast. Same logic goes to B.