A sharpshooter and ally of Steve Trevor. On his role, Bremner said, "I play a character who's enlisted by Wonder Woman to help save the world as part of a small, unlikely band". Describing his character, Bremner stated "He's a shellshocked soldier who's been discharged from the war and is brought back to help on a secret mission". On working with Jenkins, Bremner commented, "Patty Jenkins is a force of nature. She has fantastic vision, strength and enthusiasm, which is completely infectious and motivates a cast and crew of thousands to really go beyond themselves."
Steve Trevor's secretary who befriends Diana. Describing her character, Davis said, "She's a woman in a man's world and so being heard and seen aren't the easiest things, but it kind of doesn't deter her", adding, "Etta is unapologetically herself and I think that that's the thing that has drawn me to her the most". When asked if she was previously familiar with the character, Davis responded, "No. I wasn't. It took me a while to know that I was auditioning for Etta because even when I found out it was Wonder Woman, I still had no idea what the role was. It took a little while then I Googled the character". On Etta Candy's relationship with Steve Trevor, Davis said, "One of the great things that Etta gets to work with Steve Trevor is because Steve is not your typical man, in that he does entrust her with things that in 1918 probably wouldn't have been entrusted to a secretary of somebody who is quite important", further explaining, "So I think that [Trevor] needs her just as much as she needs that because now she's been given responsibility that she wouldn't have normally be given before, and equally he has somebody who could probably fly under the radar a bit. So he can trust the person who no one's really looking at".
Wonder Woman gets a little jealous with Supergirl's arrival, believing she is trying to catch everyone's attention. When she realized that Supergirl is actually a better superhero because she looks up to Wonder Woman, they became friends and Wonder Woman helps to train Supergirl. She is among the heroes to battle against Granny Goodness and the Female Furies. She is voiced by Grey Griffin.
Filming occurred outside the U.S. Capitol in Washington D.C. during mid-June. Other filming locations around DC included the Penn Quarter neighborhood, McPherson Square, the DAR Constitution Hall near the White House, the Museum of Natural History (Smithsonian), and the Lincoln Memorial. By mid-July, production in the United States was completed and moved to England. In August, filming on location took place in several places around London, including St. Andrew's Place, Regent's Park and the Royal College of Physicians. Between September and October 2018, production also took place at Almería, in Andalusia, southern Spain, as well as Fuerteventura and Tenerife in the Canary Islands.