Board Thread:Spoilers!/@comment-1916997-20170725142404/@comment-1916997-20170916181925

So we got part of the press release it seems:

http://www.spoilertv.com/2017/09/once-upon-time-episode-701-hyperion.html

It confirms that guests include Rose (Alice), Adelaide (Drizella), and Jared (Teen Henry). It also includes 4 other actors, two of which IMDB calls Prince and Carl. Here's the IMDB pages for the four:

http://www.imdb.com/name/nm2295373/

http://www.imdb.com/name/nm5795531/

http://www.imdb.com/name/nm0267295/

http://www.imdb.com/name/nm0491394/