Pedro Pascal took his sisters Lux Pascal and Javiera Balmaceda to the world premiere of "The Fantastic Four: First Steps" in Downtown Los Angeles on Monday night.

This isn’t the first time Pedro has brought Lux along on the red carpet, either—she also accompanied him to the Eddington and Gladiator II premieres, which is when fans first started asking, “Uh, who is she??” So I think it’s time for a deep dive on Lux, agreed? Here’s everything you should know about Pedro’s younger sis and their v close bond.

Marvel’s First Family — as embodied by the quartet of stars Pedro Pascal, Vanessa Kirby, Joseph Quinn and Ebon Moss-Bachrach — was in attendance at the world premiere for The Fantastic Four: First Steps, held at Los Angeles’ Dorothy Chandler Pavilion on Monday.