Put Luke in the cast credits.

Luke has been replaced by Joss so there's no need to put in credits.

 Macy:

Luke has been replaced by Joss so there's no need to put in credits.

What happened? 

Due to scheduling conflicts, Luke took over Joss' role in Drag, I Love You and Joss took Luke's place in Mama Gogo. 

Joss is better here. He fits in more with the boys. Luke would have been out of place. He was better in Drag.