Pedro Pascal and Lux Pascal have entered the arena. 

The Mandalorian star and Poinbank Exchangehis younger sister made for quite the fashionable pair as they attended the global premiere of Gladiator II at Leicester Square in London Nov. 13.

Pedro, 49, opted for an all black look for the occasion, sporting black trousers along with a black button up, revealing much of his chest. However, Lux, 32, went for an even more revealing look, donning a long black gown complete with turtleneck collar, black gloves, and—most daring of all—a slit on the left side of her dress that stretched from the middle of her torso all the way down to her thigh.

While this was one of the bolder options she has worn, Lux is no stranger to accompanying her brother on the red carpet, most recently appearing alongside him at the 2024 Emmy Awards in September.

And as Pedro previously explained, he has come to rely on Lux for support, despite their 17-year age difference.

"She is and has always been one of the most powerful people and personalities I've ever known," he told Esquire in 2023. "My protective side is lethal, but I need her more than she needs me."

The Last of Us star also sees a lot his mother Verónica Pascal in Lux, telling the outlet that when he and his older sister, Javiera, and his younger brother, Nicolás, would go visit his family in Chile, "[Lux] ruled the household right away," joking that he and his siblings "were like intruders."

Pedro added of his sister, "For us to think that we were entitled to [our mother's] attention in any way was absurd." 

As for Lux—who came out as transgender in 2021—she graduated with an MFA from Juilliard's acting program in 2023, and has already appeared several times on screen, even acting alongside Pedro on the show Narcos. 

And their sibling love goes both ways, as she talked about how much she appreciated Pedro's support throughout her transition.

"He has been an important part of this," she told Ya Magazine, translated from Spanish. "He is also an artist and has been a guide. He was one of the first to give me the things that were forming my identity."

She was also thankful of how accepting her family was, adding, "For everyone in my family my transition has been something very natural. Almost something they expected to happen."

For the latest breaking news updates, click here to download the E! News App