Mantis is a fictional character portrayed by Pom Klementieff in the Marvel Cinematic Universe (MCU) film franchise, based on the Marvel Comics character of the same name. She is a member of the Guardians of the Galaxy with empathic powers and is the paternal half-sister of its leader, Peter Quill. Introduced in Guardians of the Galaxy Vol. 2 (2017), she is an alien ward of Ego with the power to control the emotions of people by touch. She is commonly depicted as having a naive and innocent personality.

Pom Alexandra Klementieff is a French actress. She is known for playing Mantis in the Marvel Cinematic Universe (MCU), and Paris in Mission: Impossible – Dead Reckoning Part One.