Board Thread:Spoilers!/@comment-25926288-20161101150057/@comment-24674051-20161114045741

We also had Rumple's Dad in the Neverland Arc. And Jonathan (Zelena's Dad). (both season 3)

Most of the main castings for Parent's or Child versions of Main characters have been announced early going back to season 2. I wouild anticipate that this episode would see Daddy Charming AND a child version of David. And possible either that child actor could also portray James, or using identical twins to portray both yound David and James (and with King George involved with the episode, I won't rule out the possibility that we see Young James in addition to young David).