'Once Upon a Time'
Cast member Larra Parrilla poses during a photocall for the TV series "Once Upon A Time" at the 52nd Monte Carlo Television Festival in Monaco June 12, 2012. Reuters/Eric Gaillard

Two young actors have been cast in “Once Upon a Time” Season 5. The actors will reportedly be playing the roles of young Regina and young Zelena. Details about the characters were previously revealed in a casting call.

Actress Ava Acres will be playing the role of young Regina in the TV series, TV Line has learned. She is known for her work in animation movies like “Frozen,” “Wreck-It Ralph,” “Despicable Me 2” and “Minions.” She has also been a part of popular shows like “Mad Men,” “Agents of S.H.I.E.L.D.” and “American Horror Story.”

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As previously reported, the young Regina has been described as a “neglected and lonely” child who “longs for companionship.” She has still not become the Evil Queen that the fans saw in the first season of the show, in which Lana Parrilla played the role of Regina. The young Regina is not interested in the royal duties, like her mother.

The role of young Zelena will be played by Isabella Blake-Thomas. The actress is known for working in movies like “Johnny English Reborn,” “Rise of the Guardians” and “Little Glory.” Apart from being a part of “Once Upon a Time” Season 5, the actress has been cast in multiple other projects in 2016, which include “The Blimp Trap,” “Kepler’s Dream” and “Agnosia.”

Both young Regina and young Zelena will be seen in the 19th episode titled “Sisters.” Cora (Barbara Hershey) will be back in the next season and will be playing the mother of the two young characters.

The role of Zelena is played by Rebecca Mader. Zelena will be battling Dorothy Gale (Teri Reeves) in the next part of the season. Dorothy is said to be in “warrior-mode” to take on her enemy.

The main “Once Upon a Time” Season 5 story will be tied-in to the story developing in Oz. The TV series co-creator Eddy Kitsis has said that the Oz story and the Underworld story will be “significantly” connected.