'Once Upon a Time' Season 5 Spoilers: Set Photos of the Underworld Revealed

With "Once Upon a Time" season 5 still on break, it was reported that the cast and crew have already begun filming the rest of the episodes for the season.

The series has released some teaser photos from the set via Spoiler TV. The photos confirmed that the characters will have an interesting time in the Underworld. One of the photos showed Zelena with Hades, played by Greg Germann.

After being banished by Regina, it was previously hinted that Zelena will be causing major trouble for the rest of the characters. With that, another character is expected to bring more drama to the series. It was revealed that Robbie Kay will be reprising his role as Peter Pan when the series returns.

According to Enstarz, Kay was able to share some teasers about his character's return. He stated, "You're going to see a little bit in a different light. Obviously a lot has happened in the two or so years since we saw him. A lot has happened, I think he's learned from what has happened in Season 3."

Aside from Zelena and Peter Pan, many other characters are expected to join the return. In addition, the visit to the Underworld will surely bring some obstacles for many of the characters, allowing them to grow and evolve.

The president of ABC Entertainment commended the team behind "Once Upon a Time" for a successful season so far. As reported by Spoilers Guide, he stated, "Each of their arcs they bring a new theme in. Their next theme is going to be great because Hades gives us the chance to bring back so many of the people that we lost. I think Once Upon a Time has a long and bright future."

"Once Upon a Time" season 5 will return to the small screen this March 6.