Once Upon a Time in Wonderland's loss will be Once Upon a Time's upcoming gain.
Sources confirm to Entertainment Weekly that Michael Socha - beloved on the OUAT spinoff as Will Scarlet/The Knave of Hearts - will join the cast of Once Upon a Time on Season 4.
Assuming there is a Season 4, of course. ABC is yet to announce a single 2014-2015 renewal, but the odds are strongly in Once Upon a Time's favor.
Once Upon a Time in Wonderland, meanwhile, will air its series finale this Thursday.
At the moment, no other cast members are expected to jump over to the mother ship.
Once Upon a Time Season 3 is averaging under 8 million viewers per week, but ABC has struggled in the drama department and should announce its pick-up any day now.