The actress debuted as a superhero in "Doctor Strange in the Multiverse of Madness".

 

Meet Clea - Marvel's latest superhero.
 
Actress Charlize Theron's "secret" role in MCU is no longer so secret, because now the actress shows off her character in "Doctor Strange in the Multiverse of Madness" on Instagram.
 
Just like when Harry Styles appeared as Starfox at the end of "Eternals", Theron confidently steps into Marvel's world in the current "Doctor Strange" sequel, giving fans a brief WTF moment before rushing on to another universe. Charlize Theron makes one of several great cameos in the film.

Who's seventeen is Clea then, you might be wondering? It's not easy to keep track of all the comic book heroes. Thank you to Wikipedia for announcing that she is "magician and Doctor Strange's disciple, lover and eventually wife" and his successor as Sorcerer Supreme. Her favorite color is purple (my own observation).
 
Clea was created by Stan Lee and Steve Ditko and made its debut in Marvel's series in the 1960s. She has a whole bunch of magical powers and can, among other things, control other people's thoughts, create illusions and master flashes of energy. However, it is not certain which version of Clea we will encounter, due to parallel universes, you know. Marvel has always taken some creative freedom when heroes take the step over to the big screen.

Theron is no stranger to playing roles where she gets to kick ass. In 2005, she played the superhero-like lead role in the futuristic action film "Aeon Flux", and she has also excelled as a tough avenger in "Atomic Blonde". On the fantasy front, she got to dress as the evil queen in "Snow White and the Huntsman".
 
And now Marvel can add another great Hollywood actress to its growing ensemble. The role in "Doctor Strange in the Multiverse of Madness" may be minimal, but indicates that we will see much more of Clea in MCU in the future.

Watch the movie now!