N’Bushe Wright as Helen of Troy:

In Greek mythologyHelen of Troy (in GreekἙλένηHelénē), also known as Helen of Sparta, was the daughter of Zeus and Leda (or Nemesis), step-daughter of King Tyndareus, wife of Menelaus and sister of Castor, Polydeuces and Clytemnestra. Her abduction by Paris brought about the Trojan War.

When it was time for Helen to marry, many kings and princes from around the world came to seek her hand, bringing rich gifts with them, or sent emissaries to do so on their behalf. During the contest, Castor and Pollux had a prominent role in dealing with the suitors, although the final decision was in the hands of Tyndareus. Menelaus, her future husband, did not attend but sent his brother, Agamemnon, to represent him. - Wikipedia