The character is played by Hannah John-Kamen, who is having a pretty banger 2018, having appeared in three blockbuster movies so far.
It’s likely that she didn’t need much help to secure the role of Ghost, but when Steven Spielberg writes you a letter of recommendation, well, it certainly doesn’t hurt.
That’s where Ghost, a mysterious antagonist with the ability to phase through solid matter, comes in.
A lot of the focus of Ant-Man and the Wasp has been on the two title characters, but a superhero movie wouldn’t be very good if there wasn’t a villain.