After leaving The CW's superhero drama back in season 3 to join the Legion of Super-Heroes in the future, Jordan's Winn reappeared in the two-part `Back From the Future` story line this season to reconnect and reunite with his super friends and defeat his evil doppelgänger.
And while Winn went back to the future by the end of last Sunday's episode, he'll still show up in this Sunday's 100th episode, `It's a Super Life,` although not as a continuation of the story from the last two episodes - when Mister Mxyzptlk returns with a new face (now played by Thomas Lennon), Supergirl hosts its own version of It's a Wonderful Life.
But Jordan isn't done guest-starring on Supergirl just yet - he's excited for another chance to return to The CW series in the future. `It's just the fact that Winn has always been part of the DNA of the show and when he returns for these couple episodes it really just felt natural and normal".