Heavy/Getty Cynthia Erivo's Partner Comments on 'Wicked' Performance. Cynthia Erivo , the powerhouse behind the beloved role of Elphaba in the “ Wicked: Part I ” movie adaptation, has another powerhouse actress in her relationship. She’s embraced love and steadfast support from her longtime partner, Lena Waithe . As the highly anticipated film debuted on November 22, the world witnessed Erivo’s enchanting performance. Fans are also discovering the relationship that the Wicked Witch of the West