Diana's treacherous paternal half-brother, based on the Greek mythological god of war, who masquerades as a speaker for peace on the Imperial War Cabinet as part of his deceptive master plan of conquest and destruction. Describing the Sir Patrick persona of his character, Thewlis said, "Sir Patrick's entire drive through the other half of the story is to bring about the armistice. That's his whole intention no matter what's going on. He meets Diana and see in her somebody who is sympathetic to his cause, quite vehemently so."
In May 2017, early tracking had Wonder Woman opening with $65–75 million, and possibly as high as $105 million. The film opened Friday, June 2, 2017, across 4,165 theaters and made $38.7 million on its opening day, including $3.7 million in IMAX. It was the biggest single-day gross for a woman-directed film, ahead of the $35.9 million opening Friday of Catherine Hardwicke's Twilight in 2008 and the biggest opening day for a woman-led comic book superhero film, ahead of Ghost in the Shell ($7 million). This included $11 million it made from Thursday previews, also the best start for a film directed by a woman, surpassing Fifty Shades of Grey's $8.6 million which was directed by Sam Taylor-Johnson, and the third-biggest of the year, behind Beauty and the Beast and Guardians of the Galaxy Vol. 2. Of that, $1.5 million came from IMAX screenings.