User blog comment:Paul.rea/Teen Wolf News 101414/@comment-74.109.196.250-20150301173057/@comment-4091815-20150301192150

Danny

A. Wasn't one of the characters the questioner asked about.

B. His character never "left" the show. He is still in Beacon Hills we just haven't seen him.

Cora

A. Wasn't mentioned by the questioner and therefore was not part of the answer.

All the others have the ability to return - all television shows don't shoot at the exact same time. Gaps in the schedules allow for actors to do other things.