query: Who plays the character Zelena on Once Upon a Time?
passage: Zelena (Once Upon a Time)
Zelena, also known as the Wicked Witch of the West and cursed as Kelly West in the seventh season, is a fictional character in ABC's television series Once Upon a Time. She is portrayed by Rebecca Mader and was first introduced in the second half of the third season. After making recurring appearances in both the third and fourth seasons, Mader was promoted to series regular for the fifth and sixth seasons.[4] She returned as a recurring guest star in the seventh season.[5]
passage: Kansas (Once Upon a Time)
In this episode Zelena kidnaps Snow White's baby, while flashbacks show Zelena's past with Glinda the Good Witch of the South.