Pom Klementieff at the Panthere de Cartier Watch Launch in Los Angeles 05/05/2017

Wiki

Pom Klementieff is a Korean-French actress cast into the Marvel cinematic universe in the role of Mantis. She made her debut in the Marvel universe as Mantis is Guardians of the Galaxy Vol. 2, and would reprise the role for Avengers: Infinity War.